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07/09/2020, 08:00
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07/09/2020, 10:00
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Skyba P. (Centrum fyziky nízkych teplôt, Ústav experimentálnej fyziky, SAV, Košice)07/09/2020, 10:30Oral
Súčasné technológie neumožňujú experimentálne študovať a overovať naše teoretické modely
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a predstavy o fundamentálnych fyzikálnych javoch prebiehajúcich v takých astro-fyzikálnych
objektoch, akými sú čierne diery. Zatiaľ jediným spôsobom ako experimentálne verifikovať
tieto modely (a predstavy) o fyzike čiernych dier je nájsť laboratórny fyzikálny systém, ktorý
s istými obmedzeniami... -
Štefaňák M. (FJFI ČVUT v Praze)07/09/2020, 11:15Oral
Quantum walks represent a generalization of the random walk to the coherent evolution of the
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quantum particle on a graph or a lattice. We provide an overview of the concept, focusing on
the discrete-time quantum walk, and illustrate the applications in quantum simulations and
quantum computation. Finally, we introduce a very successful experimental implementation
of quantum walks which is... -
Dragoun O. (Nuclear Physics Institute of the Czech. Acad. Sci., Řež)07/09/2020, 13:30Oral
Neutrinos are together with photons the most abandon particles in the Universe. The
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knowledge of the neutrino mass is important not only for particle physics but also for
cosmology. Oscillation experiments proved that at least two of the known three neutrino mass
states have the mass different from zero, while at least one of these states has the mass greater
than 0.05 eV. Precision... -
Poláková K. (Regional Centre of Advanced Technologies and Materials, Palacký University in Olomouc)07/09/2020, 14:15Oral
Magnetic nanoparticles (NPs), especially SPIO nanoparticles, have long been used as MRI
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(Magnetic Resonance Imaging) contrast agents and as advantageous nanoplatforms for drug
delivery, taking advantage of their unique magnetic properties and ability to function at the
molecular and cellular level. In our centre smart design and development of SPIO
nanoparticles in mild conditions with... -
Hospodková A. (Institute of Physics CAS, Prague)07/09/2020, 14:50Oral
Why are the III-nitride semiconductors so unique that they became the second most important
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semiconductor material after silicon? Why it was so difficult to prepare high quality nitride
layers? It was so difficult that scientist, which have partly solved this problem were five years
ago awarded by Nobel Prize. What are the most perspective applications for nitrides? What
problems have to... -
Fejfar A. (Institute of Physics, Czech Academy of Sciences, Prague)07/09/2020, 16:00Oral
Photovoltaic solar energy conversion years has become a decisive part of the
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electricity generation. The global installed photovoltaic (PV) capacity surpassed 600 GW in
2020 and the terawatt installed capacity is going to be achieved within the following decade.
The dramatic fall of costs made PV the cheapest source of new electricity generation (without
subsidies) in large part of the... -
Weis M.07/09/2020, 16:35Oral
Organic semiconductors are a broad family of organic molecular materials that exhibit certain
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properties similar to inorganic semiconductors. Interestingly, molecular materials show only
weak forces between the molecules which gives an opportunity of new deposition methods.
The low-temperature evaporation in a vacuum is applicable for various small molecules,
whereas “wet technologies”... -
Nádvorník L. (Faculty of Mathematics and Physics, Charles University, Prague)07/09/2020, 17:10Oral
Recent breakthroughs in electrical detection and manipulation of antiferromagnets have
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opened a new avenue in the research of non-volatile spintronic devices. Antiparallel spins in
antiferromagnets lead to the insensitivity to magnetic field perturbations, multi-level stability
and ultra-fast spin dynamics, which is also a major experimental challenge [1]. In this
contribution we show how... -
07/09/2020, 19:00
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Dubnička S (Institute of Physics, Slovak Academy of Sciences, Bratislava)08/09/2020, 08:30Oral
Present state of elementary particles to be specified by a set of quantum numbers is
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summarized. An existence of four types of interactions between elementary particles is
reminded with an emphasis that not all particles are able of all four interactions. Those to be
able of strong interactions are named “hadrons”- compound of “quarks”. Compound from
quark-antiquark are “mesons” and... -
Tomas Davidek (Charles University (CZ))08/09/2020, 09:15Oral
The ATLAS experiment is the largest particle physics detector installed at the Large Hadron
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Collider at CERN, which measures the proton-proton (or lead-lead) collisions at the world-
highest energies. The precision measurements of the physics processes and particles'
properties probe our current theory of elementary particles, the so-called Standard Model
(SM). The discovery of the... -
Pejcha O. (Institute of Theoretical Physics, Faculty of Mathematics and Physics, Charles university)08/09/2020, 10:20Oral
Recent detection of gravitational waves from merging black holes and neutron stars opened a
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new window for studying the Universe and further accelerated the tremendous progress in
multiwavelength time-domain astronomy. This talk will review exciting new developments in
the quest for uncovering the origin of chemical elements in the Universe and understanding
the birth of neutron stars and... -
Komm M. (Institute of Plasma Physics of the CAS, Prague)08/09/2020, 11:05Oral
The COMPASS tokamak, originally constructed and operated at UKAEA in UK, has been
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reinstalled at the Institute of Plasma Physics of the CAS in 2009 and experienced a fruitful
decade of scientific exploration. In this contribution, we will summarize the main
achievements, which have contributed to the physics understanding of tokamak plasmas and
development of nuclear fusion related... -
Kugler A. (NPI CAS, Řež)08/09/2020, 11:40Oral
Czech Republic is aspirant member of the Facility for Antiproton and Ion Research (FAIR)
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since March 2019. Unique new European Large Research Infrastructure FAIR is currently
built up at the campus of German national laboratory for heavy ion research GSI Darmstadt.
It will cover research in nuclear and hadron physics as well as in associated fields. It is
included in the European Strategy... -
08/09/2020, 13:00
Registrace učitelů
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D’Agata G.F. (Nuclear Physics Institute of the Czech Academy of Sciences, Řež)08/09/2020, 13:30Oral
It is widely known that nucleosynthesis takes place into stars. Element lighter than
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Iron and heavier than Lithium (partially produced in primordial nucleosynthesis) are
in fact produced during stellar evolution by means of the interaction between
charged and neutral particles. About charged particles its interactions is strongly
hampered by the presence of the Coulomb barrier – usually... -
Kireš M. (Ústav fyzikálnych vied Prírodovedecká fakulta UPJŠ v Košiciach)08/09/2020, 13:30Oral
Abstrakt: Vzdelávanie je procesom sprístupňovania nadobudnutých poznatkov a overených
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postupov z vybranej oblasti ľudskej činnosti, ponúkajúcim využívanie a nadväznosť na
existujúcu úroveň vedy, techniky či spoločenských zvyklostí. Kvalitným vzdelávaním nie iba
informujeme o minulosti, ale najmä iniciujeme smerom k budúcnosti. Fyzika, ako veda, má
obrovský vzdelávací potenciál z pohľadu... -
Šimečková E. (NPI CAS, Řež)08/09/2020, 13:50Oral
Knowledge of experimental activation cross sections is important for creation and evaluation
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of evaluated libraries (TENDL) used by various programs for design accelerators, their
components, reactors, but also for nuclear structure study. The proton and deuteron activation
cross sections have been studied at NPI CAS (Nuclear Physics Institute) for many years at
variable energy cyclotron... -
Choma M. (Faculty of Humanities and Natural Sciences, Prešov University, Prešov)08/09/2020, 14:05Oral
Zvyšovanie výpočtového výkonu počítačových komponentov, ktoré je sprevádzané
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znižovaním ich cien je predpokladom vzniku nových progresívnych oblastí, ktoré postupne
získavajú na popularite, vďaka čomu získavajú masový rozmer. Tieto nové technológie rýchlo
prenikajú do rôznych oblastí nášho života a školstvo nie je výnimkou. V čase, keď väčšina
žiakov vlastní digitálne zariadenie sa... -
Koliadko D. (Nuclear Physics Institute of the Czech Academy of Sciences, Řež)08/09/2020, 14:10Oral
Precise nuclear data are of great importance in the design of fusion and ADS devices. The
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studies of prompt and delayed gamma rays from (n,g*) reactions bring important knowledge
as it is one of the main sources of nuclear data such as cross-section, nuclear energy levels,
etc.
A central part of the capability is the Cyclotron U-120 and neutron converter coupled to the
collimator. The... -
Kováč M. (Fakulta didaktiky matematiky, fyziky a informatiky, Univerzita Komenského v Bratislave)08/09/2020, 14:25Oral
Cieľom príspevku je ponúknuť učiteľom fyziky spôsob ako rozvinúť žiacke predstavy
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o tlaku v kvapalinách, o jeho príčine a dôsledkoch. Zaoberáme sa preto chápaním pojmov
tiaž, tiažová sila, gravitačná sila. Venujeme sa tiež pokusu s kvapalinou v beztiažovom stave,
kedy na telesá ponorené v kvapaline nepôsobí vztlaková sila. V príspevku navrhujeme
experiment zameraný na overenie lineárnej... -
Ansorge M. (Nuclear Physics Institute of the Czech Academy of, Řež)08/09/2020, 14:30Oral
At the Nuclear Physics Institute at the laboratory of Fast Neutron Generators, a new neutron
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collimator was recently constructed. Simultaneously a new neutron converter coupled to the
collimator was constructed and successfully tested last year. Collimated beams of fast
neutrons bringing new experimental possibilities especially for on-beam measurements with
semiconductor detectors.... -
Kácovský P. (Katedra didaktiky fyziky MFF UK, Praha, Česká republika)08/09/2020, 14:45Oral
Experiment je základním prvkem nejen ve fyzice jako vědě, ale také ve výuce fyziky. Ačkoliv
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je v poslední době více výzkumné pozornosti věnováno samostatnému experimentování žáků
v rámci badatelské výuky, významnou roli stále ve školách hraje demonstrační experiment.
Na katedře didaktiky fyziky MFF UK má projekt předvádění demonstračních experimentů pro
studenty středních škol tradici více... -
Cassisa A. (Nuclear Physics Institute of the Czech Academy of Sciences, Řež)08/09/2020, 14:50Oral
It is well known that the radioctive decay can be influenced from external environment [1][2].
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However we still don't have a univocal picture that describes these effects. Understanding
how the radioctive decay is influenced in high density environments is useful for different
fields like, for example, the relevant fusion processes in stellar environment [3] or for isotope-
cycling and... -
Houfková J. (Katedra didaktiky fyziky MFF UK, Praha)08/09/2020, 15:40Oral
Co zajímá nejmenší "fyziky" z mateřských škol a prvního stupně základních škol, co se jim
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líbí a co všechno dokáží, a co na to jejich učitelé? Co vše lze prostřednictvím jednoduchých
fyzikálních pokusů u dětí rozvíjet? Jak fyzika pomáhá spolupráci učitelů z různých typů škol?
Při odpovídání na předchozí otázky vychází autorka ze své mnohaleté zkušenosti se
zprostředkováváním... -
Mihalik M. (Institute of Experimental Physics, Slovak Academy of Sciences, Košice)08/09/2020, 15:40Oral
The transition metal oxides, with perovskite structure, have been largely studied because these
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materials exhibit strong coupling between orbital, electronic, spin and lattice degrees of
freedom. The atomic substitution at the dodecahedral sites in stoichiometric compounds has
been extensively studied and recently, interest has turned on to the effect of the substitution at
the octahedral... -
Krajčová V. (Smíchovská střední průmyslová škola, Praha)08/09/2020, 16:00Oral
Smíchovská střední průmyslová škola se dlouhodobě snaží o zavádění nových forem výuky,
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se kterými souvisí také snaha o status otevřené instituce přístupné všem generacím. Centrem
všeho dění jsou samozřejmě studenti školy, kteří mají možnost se všeobecně rozvíjet, a to
nejen klasicky v hodinách, ale i jako asistenti či vedoucí workshopů pro mateřské a základní
školy a od roku 2015 také pro... -
Džubinská (CPM-TIP, UPJS, 040 11 Košice)08/09/2020, 16:15Oral
The study of intermetallic compounds has a long history. Rare earth intermetallic
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compounds are systematically investigated more than 3 decades already. Polycrystalline
samples (Ce,Gd,Yb)Ni 5 were prepared by different ways, where interesting physical problems
were studied.
In this work we focused on competition between the effect of spin fluctuations and the
possible existence of quantum... -
Beňuška J.08/09/2020, 16:20Oral
Vyučovací proces, nielen predmetu fyzika, má svoje viac či menej zaužívané pravidlá.
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Zvyčajne sa ich adepti na učiteľstvo dozvedajú na pri štúdiu na vysokej škole. V tomto
príspevku chceme odpovedať na niekoľko otázok a podať informácie, ktoré sa možno pri
štúdiu nedozvedia. Napríklad:
Je vyučovanie fyziky iné oproti iným predmetom? Ako sa mení úloha učiteľa fyziky
v posledných rokoch? Sú... -
Kadlec Ch. (1 Institute of Physics, Czech Academy of Sciences, Na Slovance 2, Prague)08/09/2020, 16:35Oral
Multiferroic materials exhibiting coupled magnetic and electric orderings are intensely
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studied due to an interest in both their fundamental properties and potential applications based
on the magnetoelectric coupling. In general, magnons are collective spin excitations of
various types. In multiferroics, the electric component of the electromagnetic radiation can
excite magnons via the... -
Valenta J.08/09/2020, 16:45
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Gabáni S. (Institute of Experimental Physics SAS, Košice)08/09/2020, 16:55Oral
Geometrically frustrated lattices play an important role in emergent quantum mechanical
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phases, which have been rather well investigated in electronic insulators. A system that
exhibits both lattice frustration and metallic behaviour are the rare-earth (RE) tetraborides
REB 4 . They have a tetragonal structure with magnetic RE ions embedded in boron network
and forming a lattice... -
Košovský D. (Ústav jadrového a fyzikálneho inžinierstva, Slovenská technická univerzita v Bratislave)08/09/2020, 17:15Oral
Mikroštruktúra materiálov determinuje aj ich makroskopické fyzikálne vlastnosti. Tie je
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nevyhnutné poznať hlavne v prípade ocelí, ktoré sa používajú ako základný materiál pre
konštrukčné prvky jadrových zariadení. Ukazuje sa, že chróm v rôznych zliatinách má
antikorózne vlastnosti kvôli povrchovej segregácii a tvorbe pasivačnej vrstvy. Práve preto sú
ocele s prímesou chrómu vhodným... -
Heczko O. (Department of Magnetic Measurements and Materials, Institute of Physics CAS, Prague)08/09/2020, 17:35Oral
In the past two decades Ni-Mn-Ga Heusler alloys have received great attention as these
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exhibit magnetic shape memory effects, first described in 1999. Modulated Ni 2 MnGa
martensite has exceptionally low stress for pseudoplastic deformation or structural
reorientation by twinning mediated by highly mobile twinning boundaries [1]. Owing to large
magnetic anisotropy and low twinning stress... -
08/09/2020, 18:30
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Kundracik F. (Katedra experimentálnej fyziky, Fakulta matematiky, fyziky a informatiky, Univerzita Komenského v Bratislave)08/09/2020, 19:30
Píšťalky a najmä fujara sú neodmysliteľnou súčasťou slovenskej kultúry a svetového
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kultúrneho dedičstva. Najviac osobitými slovenskými píšťalami sú fujara (najdlhší nástroj
tohto typu na svete) a koncovka (píšťala bez dierok). Fujara si získala celosvetovú pozornosť
najmä špecifickou farbou zvuku, koncovka zasa svojou jednoduchou konštrukciou
a spôsobom hry na ňu. Oba tieto nástroje však... -
Matolín V. (Matematicko-fyzikální fakulta, Univerzita Karlova, Praha)08/09/2020, 20:30
Odklon od využívání fosilních paliv vyžaduje hledání nových nosičů energie, které budou
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nezbytné pro dosažení ambiciózního cíle uhlíkově neutrální energetiky. Přestože podíl výroby
elektrické energie z obnovitelných zdrojů, především solární a větrné, neustále roste,
významnější závislost na těchto zdrojích bude spojena s řešením různých problémů,
spojených především s vlivy počasí a... -
09/09/2020, 08:30
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09/09/2020, 08:30
Canceled
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Vaněk J. (Nuclear Physics Institute, Czech Academy of Sciences, Rez)09/09/2020, 10:30Oral
At RHIC energies, charm quarks are primarily produced in hard partonic scatterings at early
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stages of ultra-relativistic heavy-ion collisions. This makes them an ideal probe of the Quark-
Gluon Plasma (QGP) produced in these collisions, since they experience the whole evolution
of the hot and dense medium. STAR is able to study the interactions of charm quarks with the
QGP through direct... -
Kekule M. (Katedra didaktiky fyziky, MFF UK, Praha)09/09/2020, 10:30Oral
We employed the eye-tracking method (Eyetracker by Tobii, 300 Hz) in order to observe
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students’ strategies of choosing an option when they solved multiple-choice tasks focused on
graph slope interpretation. Each student solved 7 multiple-choice tasks focused on graphs in
kinematics. Most tasks were adopted from Beichner’s TUG-K test (Beichner, 1994).
Particularly, they were focused on... -
Holubová R. (Přírodovědecká fakulta Univerzity Palackého Olomouc)09/09/2020, 10:50Oral
Cílem příspěvku je prezentovat výsledky mezinárodního šetření o existenci a obsahu
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překlenovacích kurzů pro absolventy středních škol, kteří nastupují do 1. ročníku studia
přírodovědných předmětů na vysokých školách. Byli dotazování jak studenti, tak i
vysokoškolští pedagogové, zda jsou takovéto kurzy na vysokých školách nabízeny, zda
studenti tyto kurzy navštěvují, popř. zda by byl o... -
Líčeník R. (Nuclear Physics Institute, Czech Academy of Sciences, Řež)09/09/2020, 10:50Oral
It has been established that the Quark-Gluon Plasma (QGP), an exotic state
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of deconfined matter, is created in high-energy heavy-ion collisions. Jets are a
very important probe of this hot and dense nuclear matter, since they emerge
from the fragmentation of hard-scattered partons (quarks and gluons) that are
created during the early stages of the collisions. Therefore, measurements... -
Křížek F. (ÚJF AV ČR, Řež)09/09/2020, 11:10Oral
QCD jets are modified ("quenched") by their interactions with the quark-gluon plasma (QGP)
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formed in high-energy nuclear collisions. The measurement of jet quenching in small collision
systems can tell us about the limits of QGP formation and the nature of equilibration in QCD,
but to date no significant jet quenching has been observed in small systems. In this talk, the
ALICE... -
Gorčáková S. (Katedra didaktiky matematiky, fyziky a informatiky, FMFI UK, Bratislava)09/09/2020, 11:10Oral
Konštruktivistické prístupy, ktoré sa v súčasnosti uplatňujú vo vzdelávaní v podobe
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bádateľsky orientovanej výučby, zdôrazňujú okrem rozvíjania porozumenia aj rozvoj
zručností a spôsobilostí súvisiacich s činnosťami, ktoré vedú ku konštrukcii poznatkov. Počas
prípravy študentov učiteľstva fyziky sa však často stretávame so situáciou, kedy študent
uprednostňuje vyučovacie stratégie, ktorými... -
Ponimakin G. (Nuclear Physics Institute of the CAS, Rez)09/09/2020, 11:30Oral
Jets of collimated particles arising from hard scattered partons have been studied extensively
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in hadron collisions. Jets serve a multitude of purposes as they are utilized in fundamental
studies of the Standard Model (SM) and in searches for new particles. Recently, studies of jet
interaction with the quark-gluon plasma (QGP) created in high energy heavy ion collisions are
of growing... -
Koupilová Z. (Katedra didaktiky fyziky MFF UK, Praha)09/09/2020, 11:30
V poslední době se i ve vysokoškolské výuce, zejména v úvodních kurzech během prvních let
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studia, objevuje posun od tradičně pojaté výuky k aktivizujícím výukovým formám. Jejich
prostřednictvím se prohlubuje konceptuální pochopení základních myšlenek, které se tak
vzájemně doplňuje s řemeslným zvládnutím konkrétních technik řešení úloh typických pro
dané fyzikální téma. Výzkumy prováděné... -
Kosarzewski L. (Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague)09/09/2020, 11:50Oral
Heavy-ion collisions allow to recreate conditions present in the universe shortly after the Big
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Bang when the quark-gluon plasma can be formed. The properties of such plasma can be
studied using Upsilon mesons. Each of Upsilon states is expected to dissociate at a different
temperature reached in the plasma, through Debye-like screening of color charges. Thus, their
production yields are... -
Skopalík J. (Dept. of Biomedical Engineering, Faculty of Electrical Engineering and Communication, University of Technology, Brno)09/09/2020, 11:50Oral
Lab rats and rabbits are irrepleceable models for study of the ortopedic pathologies.
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Traditional analysis of these pathologies is based on postmortem histological analysis or X-
ray or invasive sampling, however modern monitoring of orthopedic pathology and
regeneration needs the smart and noninvasive methods for quantification of the motility of
the limbs and organism. Advances in... -
Ješková Z. (Prírodovedecká fakulta UPJŠ, Košice)09/09/2020, 13:30Oral
V súčasnosti častokrát skloňované problémy s prírodovedným vzdelávaním sú v centre
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pozornosti národného projektu IT Akadémia, ktorého hlavným cieľom je vytvorenie modelu
vzdelávania pre aktuálne a perspektívne potreby vedomostnej spoločnosti a trhu práce so
zameraním na informatiku a digitálne technológie. V rámci príspevku predstavíme dva
kľúčové ciele projektu: inovácia vzdelávania... -
Füzer J. (Ústav fyzikálnych vied, Prírodovedecká fakulta, Univerzita P. J. Šafárika, Košice)09/09/2020, 13:30Oral
Nepretržitý pokrok v oblasti magneticky mäkkých materiálov prináša nové možnosti ich
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využitia v modernej elektrotechnike a elektronike. Cieľom hľadania progresívnych materiálov
je snaha o zníženie ekonomických nákladov na ich výrobu a prevádzku z nich zhotovených
výrobkov v priemyselných aplikáciách. Magneticky mäkké kompozity (MMK) vyrobené
práškovou metalurgiou otvárajú nové možnosti pri... -
Kľučarová A. (Katedra fyziky, matematiky a techniky, Fakulta humanitných a prírodných vied, Prešovská univerzita v Prešove)09/09/2020, 13:50Oral
Predkladaný príspevok je venovaný pedagogicko-psychologickej téme záujmu, ako jedného
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z významných činiteľov zohrávajúcich dôležitú úlohu v procese samostatného žiackeho
bádania a učenia sa. Autori príspevku sústreďujú svoju pozornosť na záujem žiakov o
predmet školskej fyziky. Dôraz pritom kladú na poznávací záujem. Hlavným cieľom
príspevku je zistiť prítomnosť poznávacieho záujmu... -
63. NOVEL DIRECTIONS IN STUDIES OF ELECTRON-HOLE LIQUID IN SEMICONDUCTORS: WIDE GAP AND 2D MATERIALSValenta J. (katedra chemické fyziky a optiky, Matematicko-fyzikální fakulta, Univerzita Karlova, Praha)09/09/2020, 14:05Oral
The low-temperature electron-hole plasma may undergo phase transition to the liquid state:
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the electron-hole liquid (EHL). The transition is allowed in dense plasma below critical
temperature T C and it exists only in the thermodynamic limit, i.e. when the lifetime of the
electron-hole system is long enough to reach the thermal equilibrium. For that reason, the
macroscopic and relatively... -
Kiss T. (Oddelenie didaktiky fyziky, Fakulta matematiky, fyziky a informatiky,Univerzita Komenského, Bratislava)09/09/2020, 14:10Oral
Človek je spoločenská bytosť a integrálnou súčasťou spoločenského života je aj komunikácia.
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Pri komunikácií musíme často zdôvodňovať svoje tvrdenia, presviedčať iných o ich
pravdivosti – argumentovať. Schopnosť argumentovať však nie je schopnosť, ktorá je človeku
daná pri narodení. Je však možné ju rozvíjať a zlepšovať napríklad tým, že žiaci počas hodín
vyjadrujú svoje názory pri riešení... -
Čevajka J. (Fakulta Matematiky, Fyziky a Informatiky, Univerzita Komenského v Bratislave)09/09/2020, 14:30Oral
Hodnotenie, ako súčasť výchovno-vzdelávacieho procesu, je v poslednej dobe značne
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diskutovanou témou medzi odborníkmi v didaktike, učiteľmi, žiakmi, rodičmi ale i v celej
spoločnosti. Diskutovanou témou je najmä úloha hodnotenia, jeho funkcie a postavenie vo
výchovno-vzdelávacom procese. Taktiež sa vedú úvahy, či je hodnotenie v podobe, akej sa
realizuje, objektívne a naozaj posudzuje... -
Oswald J. (Institute of Physics CAS, v.v.i., Prague)09/09/2020, 14:45Oral
Nitride semiconductor heterostructures are widely used for light-emitting, high-power and
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high-frequency applications. But InGaN/GaN multiple quantum well (QW) structures are also
potential candidates for scintillation detectors. This application needs completely different
design of the heterostructure in comparison with LED one. It opens new problems that have
not been solved yet. Main... -
Kolář P. (Matematicko-fyzikální fakulta, Univerzita Karlova, Praha)09/09/2020, 14:50Oral
Cílem výzkumu, o jehož části pojednává tento příspěvek, je zjistit představy zainteresovaných
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aktérů o fyzikálním kurikulu. Mezi tyto aktéry patří mimo jiné fyzikové–vědci, další
přírodovědci, didaktikové fyziky a učitelé fyziky. Na základě sběru a analýzy jejich představ
budou formulovány podněty k proměně současného kurikula fyziky pro základní a střední
školy.
Cílem příspěvku je... -
09/09/2020, 15:30Poster
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09/09/2020, 15:45Poster
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Gálisová L.galisova.lucia@gmail.com (Institute of Manufacturing Management, Faculty of Manufacturing Technologies with the seat in Prešov, Technical University of Košice)09/09/2020, 15:50Poster
The present work deals with the exactly solvable spin-1/2 Ising-Heisenberg model on an
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infinite but regular two-dimensional lattice composed of identical inter-connected bipyramidal
plaquettes with the aim to clarify a bipartite entanglement between the Heisenberg spins at
zero as well as finite temperatures. The quantity called concurrence is used as an indicator for
determining a... -
Tóthová J. (Department of Physics, Faculty of Electrical Engineering and Informatics, Technical University of Košice)09/09/2020, 15:50Poster
The Brownian motion of a particle in a bath of other particles is effectively described by the
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generalized Langevin equation (GLE). Following Kubo, it is usually assumed that if external
forces act on the system, they do not affect the thermal force and the memory function that
enter the GLE. The action of such forces is restricted to the Brownian particle (BP), leaving
the bath particles... -
Lisý V. (Department of Physics, Faculty of Electrical Engineering and Informatics, Technical University of Košice)09/09/2020, 15:50Poster
The Brownian motion of a particle immersed in a bath of charged particles is considered when
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the system is placed in a magnetic field. The widely accepted Caldeira-Legget particle-bath
model is modified so that not only the charged Brownian particle (BP) but also the bath
particles respond to the external field. For stationary systems, two equations for the BP
motion across the field are... -
Kamarád J. (Institute of Physics ASCR, Prague)09/09/2020, 15:50Poster
The Heusler Ni 2 Mn 1+x Sn 1-x alloys exhibit structural martensitic transformation from cubic
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(austenite) into orthorhombic (martensite) phase in a narrow composition range, 0,4 ≤ x ≤ 0,6,
only. The transformation is accompanied by a significant changes of volume, magnetization
and by large anomalies in transport properties. We have studied forced volume magneto-
striction, Joulian... -
Snětinová M. (Katedra didaktiky fyziky MFF UK, Praha)09/09/2020, 15:50Poster
Sbírka řešených úloh z fyziky a Sbírka fyzikálních pokusů vznikají na Katedře didaktiky
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fyziky MFF UK. Jedná se o podpůrné materiály pro studenty a učitele základních, středních
i vysokých škol.
Sbírka řešených úloh z fyziky je vyvíjena již 14 let a obsahuje přes 900 úloh v češtině. Je
primárně určena vysokoškolským studentům a žákům středních škol, lze v ní ale nalézt
i úlohy na úrovni... -
Miglierini M. ( Institute of Nuclear and Physical Engineering, Slovak University of Technology in Bratislava)09/09/2020, 15:50Poster
Metallic glasses are still attracting the interest of researchers namely for their very good soft
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magnetic properties. With the aim to enhance their practical applications, new compositions
are continuously scrutinized. Here, we present Mössbauer spectrometry study of a novel
Fe 51 Co 12 Si 16 B 8 Mo 5 P 8 metallic glass prepared in a form of ribbons by conventional method of
planar flow... -
75. NEW VIEW ON THE ORIGIN OF HIGH CONDUCTIVITY OF POLYANILINE FILMS PROTONATED BY HYDROCHLORIC ACIDRutsch R. (Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, Prague)09/09/2020, 15:50Poster
Polyaniline (PANI) is a material known for its high conductivity and also huge range of
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obtainable conductivities. In general, three types of charge carriers are considered in PANI
salt, namely holes, polarons and protons. Many authors attribute the high conductivity of acid
doped PANI to polarons [1-3]. We show that conductivity of polarons might not be
necessarily the prevailing... -
Tarjányi N. (Department of Physics, Faculty of Electrical Engineering and Information Technology, University of Žilina)09/09/2020, 15:50Poster
If we put a several tens of microns thin sample of nematic liquid crystal with planar alignment
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of molecules with respect to the LC cell surface in between two crossed plane polarizers,
illuminate it by white light and rotate appropriately, then using a fiber optic spectrometer we
can observe a quasi-periodic spectral distribution of intensity of light behind the output
polarizer. The... -
Kadlec F. (Institute of Physics, Academy of Sciences of the Czech Republic, Prague)09/09/2020, 15:50Poster
Lawsonite [CaAl2Si2O7(OH)2·H2O] is an uncommon mineral found in metamorphic rocks,
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occurring at subduction zones, supposedly at depths of up to 250 km. It contains 11.5 wt%
water in its crystal structure. At room temperature, it is orthorhombic, crystallizing in the
Cmcm space group. Its structure contains a silicate tetrahedra framework with four formulas
in the unit cell. Each chemical... -
Šmídová N. (Department of Physics, Faculty of Electrical Engineering and Informatics, Technical University of Košice)09/09/2020, 15:50Poster
Thermoplastic starch, a group of starch-based materials, has often been under review because
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it can be used as low-cost bioplastics. Native starch is usually processed under the action of
high temperature and shear stress with addition of plasticizers such as low molecular weight
polyols and/or amide-containing molecules to obtain a moldable thermoplastic material. Such
materials are... -
Hockicko P. (Katedra fyziky, Fakulta elektrotechniky a informačných technológií, Žilinská univerzita v Žiline)09/09/2020, 15:50Poster
STEM vzdelávanie zamerané na Science, Technology, Engineering a Mathematics zahŕňa
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v sebe prípravu vysokoškolsky vzdelaného absolventa technickej univerzity, ktorý v priebehu
prípravy získal zručnosti zo všetkých spomínaných oblastí. Podľa Bloomovej taxonómie
poznávacích cieľov takéto vzdelávanie je realizované na vyšších stupňoch, ako je analýza,
aplikácia a hodnotiace posúdenie.... -
Těšínská E. (Ústav pro soudobé dějiny AV ČR Praha)09/09/2020, 15:50Poster
V lednu 1956 bylo Československo přizváno k účasti na založení ústavu pro jaderný, který
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měl být obdobou Laboratoře Evropské organizace pro jaderný výzkum (CERN) v Ženevě pro
země tzv. lidové demokracie. Československé stranické a vládní orgány nabídku přijaly.
Na konferenci o ústavu, která se konala ve dnech 20.–26. března 1956 v Moskvě, byla
československou vládou vyslána sedmičlenná... -
Svoboda J. (Ústav fyziky plazmatu AV ČR, Praha)09/09/2020, 16:20Poster
Tokamak COMPASS je vybaven dvěma sadami diagnostik, které jsou rutině využívány
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k počítání tomografických inverzí. Jedná se o polovodičové diody, které slouží buď jako
bolometry (měří celkový vyzářený výkon), nebo jsou vybaveny beryliovým filtrem a měří
měkké rentgenové záření.
V důsledku omezení pozorovacích úhlů je tomografická inverze na tokamacích nedostatečně
určená, a proto se... -
Hovančík D. (Faculty of Mathematics and Physics, Charles University, Prague)09/09/2020, 16:20Poster
The uranium based intermetallics are intensively studied because of dual character of uranium
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5f electrons. Unique coexistence of ferromagnetism and superconductivity has been revealed
in URhGe and UCoGe crystalizing in the orthorhombic TiNiSi-type structure. Since UCoGe
(T C =2.5 K) is very close to magnetic instability, it is a candidate to observe vanishing of
ferromagnetic order and... -
Santolík O. (Department of Space Physics, Institute of Atmospheric Physics of the Czech Academy of Sciences)09/09/2020, 16:20Poster
Dust grains in the Martial dust storms or dust devils may be electrically charged by
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triboelectric effects and laboratory experiments show that under specific conditions electric
discharges might occur in the dusty Martian atmosphere. Remote measurements from the
Earth using a 34-m Deep Space Network antenna have shown a non-thermal component of
electromagnetic radiation from Mars which... -
Černý M. (Department of chemical physics and optics, Faculty of Mathematics and Physics, Charles University, Prague)09/09/2020, 16:20Poster
Atomic Force Microscopy (AFM) is a powerful imaging technique which provides very high-resolution images and topological data in scales of nanometers. The quality of the obtained data is determined by quality of used AFM tip and fine adjustment of measuring parameters and settings of the machine. The measurement becomes more challenging if the AFM probe is about to approach a soft and elastic...
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Češka J. (FJFI, České Vysoké Učení Technické v Praze)09/09/2020, 16:20Poster
Kvarkonia jsou dúležitou sondou k vyšetřování vlastností kvark-gluonového plasmatu.
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Proton-protonové srážky jsou nezbytným prostředkem k ustanovení základních vlastností,
které slouží ke studiu kvarkonií v proton-jaderných a jádro-jaderných srážek. Tento poster
prezentuje základní charakteristiky Upsilon mezonů zjištěné pomocí Monte Carlo generátorů
v proton-protonových srážkách při √ sNN... -
Cieslar M. (Charles University, Faculty of Mathematics and Physics)09/09/2020, 16:20Poster
Al-Li based alloys of AA2195 type are designed mainly for aerospace applications. They
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exhibit a very high strength due to a presence of strengthening precipitates of a nanometric
size. However, materials prepared by a conventional direct-chill casting and following rolling
exhibit strong crystallographic texture and inhomogeneous mechanical properties. This
inconvenient behavior could be... -
Kolmašová I. (Department of Space Physics, Institute of Atmospheric Physics of the Czech Academy of Sciences)09/09/2020, 16:20Poster
The Waves instrument onboard the Juno spacecraft recorded numerous cases of dispersed
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electromagnetic waves generated by Jovian lightning. These waves, also known as whistlers,
propagated through ionospheric and magnetospheric plasmas before their detection by Juno
during its close approaches to Jupiter. We present observations of nearly five thousand low-
dispersion lightning whistlers... -
Hubáček T. (Institute of Physics CAS, v.v.i., Prague)09/09/2020, 16:20Poster
Nitride semiconductors became the second most important semiconductor material after
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silicon in the last two decades. Many daily used devices, such as blue light emitting diodes or
high electron mobility transistors in electronic devices, are based on nitride semiconductors.
Despite the nitride devices mass production, there are many open questions and not well
understood phenomena which... -
Janek M. (Physics Department, University of Zilina)09/09/2020, 16:20Poster
One of the approaches to investigate the equation-of-state of dense nuclear matter is the study
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of the short-range correlations of nucleons in nuclei. Short-range correlations have densities
comparable to the density in the center of a nucleon and they can be considered as the drops
of cold dense nuclear matter. Dp elastic and dp breakup processes are investigated at Internal
Target... -
Holý V. (Department of Condensed Matter Physics, Charles University, Prague)09/09/2020, 16:20Poster
Nanoparticles of hexagonal phase in bcc-Ti(Mo) single crystals ( phase) occur due to a
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diffusionless athermal to transformation and they grow during follow-up ageing at
elevated temperatures, while the alloying atoms (Mo in our case) are expelled from the
nanoparticle volumes. We used anomalous x-ray diffraction for the study of local chemical
composition of growing particles and... -
Holub M. (Institute of Physics, Faculty of Science, P.J. Šafárik University)09/09/2020, 16:20Poster
The idea of controlling the magnetic ground state of a spin-1 one-dimensional
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antiferromagnetic (1d AFM) quantum magnets has long been of interest to physicists. In the
study of anisotropic 1d AFM systems based on Ni 2+ compounds, a series of topologically
protected quantum phases was observed, one of these phases is the topologically protected
Haldane phase [1, 2]. The magnetic ground... -
Vinnik O. (Institute of Physics, P. J. Šafárik University, Košice)09/09/2020, 16:20Poster
Current work is focused on the lattice subsystem of Cu(en)Cl 2 , Cu(tn)Cl 2 and
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Cu(en)(H 2 O) 2 SO 4 (en = C 2 H 8 N 2 , tn = C 3 H 10 N 2 ), quasi-two-dimensional quantum magnets with
one-dimensional polymeric structure. Magnetic layers were described within spin = 1/2
Heisenberg models on the rectangular and zig-zag-square lattice with nearest-neighbor
couplings J 1 > J 2 . The... -
Bajtošová L. (Charles University, Faculty of Mathematics and Physics)09/09/2020, 16:50Poster
Small-scale thin films are frequently used in microelectronic devices and micro-electro-
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mechanical systems where they are commonly subjected to high strains during their dynamic
motion. However, mechanical behavior of thin films significantly differs from the behavior
observed in bulk materials. To understand the size dependent properties of deformation
mechanisms, characterization of the... -
Gecasek D.09/09/2020, 16:50Poster
Cosmic rays are particles, coming from space. The system COR (Cut-off rigidity) provides
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access for the wider scientific community to models of simulation of cosmic ray trajectories
in the magnetosphere via a web interface. The system offers simulations of vertical directions
or, from multiple nonvertical directions covering half sphere (2Pi solid angle) with the center
of the sphere in... -
Macusova E.09/09/2020, 16:50Poster
Runaway electrons (RE) present one of the major concerns for future fusion devices
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(tokamaks), since the uncontrolled localized RE losses can compromise the integrity
of tokamak device and its further operation. Runaway electrons can emerge within a
tokamak plasma either at low density, during the discharge start-up phase or as a result of
rapid plasma termination, associated with sudden... -
Minar J.09/09/2020, 16:50Poster
Angle-resolved photoemission spectroscopy (ARPES) is a leading experimental probe for
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studying the electronic structure and complex phenomena in quantum materials. Modern
experimental arrangements consisting of new photon sources, analyzers and detectors supply
not only spin resolution but also extremely high angle and energy resolution [1]. Furthermore,
the use of photon energies from few... -
Křivská B. (Charles University, Faculty of Mathematics and Physics)09/09/2020, 16:50Poster
Bonding of aluminium and steel into one single material – an aluminium-steel clad –
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represents an excellent composite material, which provides high potential for applications in
automobile industry by combination of properties of respective materials – high stiffness and
strength of steel and durability, corrosion resistance, thermal capacity and high specific
strength of aluminium.... -
Křivská B.09/09/2020, 16:50Poster
Bonding of aluminium and steel into one single material – an aluminium-steel clad –
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represents an excellent composite material, which provides high potential for applications in
automobile industry by combination of properties of respective materials – high stiffness and
strength of steel and durability, corrosion resistance, thermal capacity and high specific
strength of aluminium.... -
Paulovičová K.09/09/2020, 16:50Poster
Magnetic fluids belong to special nanomaterials with many application possibilities. One of
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the fields of their use is the energy industry, where the demands on the performance of
electrical equipment are constantly rising. As a result, there is a need to use modern
insulation systems. Adding nanoparticles to conventional media could be one way to obtain
them. In this study, we focused on... -
Králík R. (Charles University, Faculty of Mathematics and Physics)09/09/2020, 16:50Poster
Twin-roll casting of AA8079 aluminum sheets creates non-equilibrium structure as a result of
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high solidification rates. Homogenization treatments consisting of an exposure of the as-cast
material to high temperatures close to the melting point result in a redistribution of solute
atoms and a formation of a more stable structure. Newly formed equilibrium particles have
different... -
Vrláková J.09/09/2020, 16:50Poster
Emission of relativistic particles produced in central nuclear collisions in emulsion detector
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has been studied for different beam energies and primary nucleus - 16 O, 20 Ne, 28 Si, 32 S, 197 Au
and 208 Pb. A preliminary study of multiplicity and target dependence of particles fluctuations
on pseudorapidity distribution in terms of the quantity has been made. Search for... -
Michajlenko V.09/09/2020, 16:50Poster
Cosmic rays propagate the heliosphere from interstellar space till orbit of planets and Sun.
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The problem of their distribution, described by Fokker-Planck equation is solved by a couple
of methods, one of the most used is the stochastic method based on Ito lemma.
Presented work is focused on the estimation of statistical error of Fokker – Planck equation
solution of the 1D forward... -
Kravcakova A.09/09/2020, 16:50Poster
The substuctures in the emission of relativistic particles in central 197 Au and 208 Pb interactions
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with Ag, Br targets in nuclear emulsions at beam momenta 11.6 and 158 A GeV/c,
respectively, have been investigated. The nonstatistical ring-like substructures of produced
particles in azimuthal plane of a collision as result of hydrodynamic waves in nuclear matter
have been searched and... -
Peterka M.09/09/2020, 16:50Poster
Provoz v režimu s vysokým udržením energie plazmatu (H-mód) je jedním z klíčových
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předpokladů pro úspěšné dosažení hlavního cíle tokamaku ITER, jímž je desetinásobné fúzní
zesílení výkonu. Přechod do H-módu však může být významně ztížen v důsledku přítomnosti
chybových polí, které v tokamaku nevyhnutelně vznikají jako důsledek nepřesností v
umístění magnetických cívek či centrálního... -
Siváček I.09/09/2020, 17:20Poster
Measurements of energy dependence of the total reaction cross section with exotic, neutron-
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rich nuclei are used to study the phenomena related to the structure of weakly bound neutrons
in neutron halo and neutron skin. A spectrometer „MULTI-2“ for direct measurement of the
total reaction cross section with radioactive beams is presented, together with some results
obtained on the setup.... -
Karpets M.09/09/2020, 17:20Poster
Transformers are one of the significant parts of the electrical power system. As the power
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transmission system is opting for high voltage high power transmission, high performance
insulating materials are drawing attention of the electrical power industry. Nanofluids, formed
by adding nanoscale particles to insulating oil, are stable and homogeneous suspensions that
present advanced... -
Pokorný J.09/09/2020, 17:20
The H–function is the most important part for determining the absorption coefficient. This
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article deals with the calculation of the H–function of selected bands of molecular oxygen.
Program calculations are performed on the basis of freely available data from world databases
(NIST) and book sources (e.g. Glushko, Rosen) providing the possibility of comparison.
For the structural... -
Král P.09/09/2020, 17:20
Thanks to the specific electronic structure the rare earth-based compounds, especially
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those containing Yb, Ce or Eu, often exhibit exceptional magnetic properties. In our study we
have focused on cerium-based compound Ce 2 Pd 2 In belonging to the family of R 2 T 2 X
compounds crystallizing in tetragonal Mo 2 FeB 2 -type structure. Previous studies revealed
presence of two magnetic phase... -
Staško D.09/09/2020, 17:20Poster
Pressure-induced superconductivity in CeRhSi 3 and CeIrSi 3 has attracted a significant
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attention for unconventional nature of the superconductivity in a non-centrosymmetric lattice.
All previous results, however, were limited to maximum 3 GPa of applied pressure. We focus
on a high-pressure-region behavior of the pressure-induced superconductivity in CeRhSi 3 . Our
study was performed... -
Dr S. Kotorová (Faculty of Electrical Engineering and Information Technology, Slovak University of Technology, Ilkovičova 3, Bratislava, Slovakia)09/09/2020, 17:20Poster
The usual interband transitions S0–S0, S0–S1, S0–S2 can be clearly identified in the recently published photoluminescence measurements on P3HT layers. However, in many cases the spectra are characterized by weaker ripples besides these main features. We point out their possible interpretation by means of the H and J aggregates theory proposed by Spano (F. C. Spano, J. Chem. Phys. 122,...
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Jakubský V.09/09/2020, 17:20Poster
We use the Wick-rotated time-dependent supersymmetry to construct models of two-
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dimensional Dirac fermions in presence of an electrostatic grating. We show that there
appears omnidirectional perfect transmission through the grating at specific energy.
Additionally to being transparent for incoming fermions, the grating hosts strongly localized
states. -
09/09/2020, 19:30
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Pavelka O. (Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University, Prague)10/09/2020, 08:30Oral
One of the fundamental features of nanotechnology is that properties of a certain material can
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be changed just by varying its shape and size. This exactly is the case for the two types of
gold nanostructures in our study, where luminescent gold nanoclusters (AuNCs) benefit from
the presence of plasmonic gold nanorods (AuNRs). Despite the limited number of atoms,
AuNRs with characteristic... -
Smrž M. (Institute of Physics, Czech Academy of Sciences, Prague,)10/09/2020, 08:30Oral
Laserové systémy prošly od svého objevení v roce 1960 dlouhou cestu a v posledních letech
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se stávají stále častěji běžně využívaným pracovním nástrojem. Centrum HiLASE
Fyzikálního ústavu se od svého vzniku zaměřuje na vývoj špičkových, zejmna pulsních,
diodově buzených pevnolátkových laserů pro moderní průmyslové aplikace. Takové lasery
s vysokou účinností, středním výkonem až 1 kW a dobou... -
Kúdelčík J. (Katedra fyziky, Fakulta elektrotechniky a informačných technológií, Žilinská univerzita V Žiline)10/09/2020, 08:50Oral
Štúdium dielektrických parametrov vedie k lepšiemu porozumeniu polarizačných
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a relaxačných javov v nových materiáloch. Táto štúdia je zameraná na mnohostenné
karbónové nanorúrky funkcionalizované magnetickými nanočasticami. Pomocou dielektrickej
spektroskopie sa študoval vplyv elektrického poľa na zmeny dielektrických parametrov
i štruktúrneho usporiadania MWCNT/Fe 3 O 4 . Frekvenčná... -
Kubeš P.10/09/2020, 09:05Oral
V plazmovém fokusu je husté a horké plazma vytvářeno kompresí proudu procházejícího plazmatem
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vlastním magnetickým polem. Prezentované výsledky vedoucí v deuteriové náplni k fúzní DD reakci
byly prováděny v IPPLM ve Varšavě na aparatuře PF-1000, která dosahuje°neutronový zisk 10 11 A při
proudu 1 – 2 MA. Na aparatuře je využívána komlexní rentgenová, laserová, částicová a... -
Hulicius E. (Institute of Physics, Czech Academy of Sciences, Prague)10/09/2020, 09:10Oral
This paper focuses on quantum dots (QDs) embedded inside semiconductor heterostructures
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prepared by Metalorganic Vapor Phase Epitaxy (MOVPE) technology and is based on our
contribution in [1].
Light emission from atoms/molecules in a glass matrix or in gas is strongly monochromatic.
Semiconductor direct-bandgap materials have much higher energy conversion efficiency than
the other light... -
Brotánková J. (FJFI ČVUT v Praze)10/09/2020, 09:25Oral
The contribution focuses on a new plasma laboratory, currently in commissioning phase. Its
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aim is to provide doctoral and undergraduate students as well as non-fusion experts with
hands-on experience and support for their experimental research relevant to modern fusion
technology. The laboratory consists of four main sections: Electric and magnetic fields,
Plasma, Optics, and the GOLEM... -
Hulman M. ( Institute of Electrical Engineering, SAS, Bratislava)10/09/2020, 09:30Oral
Thin MoS 2 layers grown by sulfurisation of Mo films can be aligned horizontally or vertically
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depending on the initial Mo thickness. So far, the vertical alignment of MoS 2 layers has been
detected by TEM measurements. However, TEM provides information only from a very
limited area of the sample and requires time consuming and laborious sample preparation.
Alternatively, grazing incidence... -
Duda D. (Faculty of Mechanical Engineering, University of West Bohemia in Pilsen)10/09/2020, 09:45Oral
Turbulence is one of the most fascinating phenomena in nature existing from Ångström
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length-scales (quantized vortices in superfluid helium [La Mantia et al. 2016]) up to galactic
scales [Vatistas 2010]. One of the main features of turbulence is the presence of interacting
vortices of various strengths sizes and orientations. But the present description of turbulence
is based on... -
Fučíková A. (Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University, Prague)10/09/2020, 09:50Oral
The physical and chemical properties of materials tested on the macro- or nano-scale may
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differ dramatically. For example, when measuring the Young's modulus of elasticity, we
assume an “infinite” depth of material, which is not fulfilled especially when the Young’s
modulus is measured at the nano-scale. Another example, the interaction of nanomaterials
with biological environment and... -
Jelínek P. (Institute of Physics of Czech Academy of Sciences, Prague)10/09/2020, 10:30Oral
Low dimensional materials offer very interesting material and physical properties due to
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reduced dimensionality. At present, 2D materials are the focus of attention. However, 1D
systems often show far more exotic features, such as Tomanaga-Luttinger liquid, Peierls
distortion, etc.. In this talk, we will present -conjugated molecular chains of distinct
topological classes formed on... -
Gmucová K. (Fyzikálny ústav SAV, Bratislava)10/09/2020, 10:30Oral
V posledných rokoch vzrástol význam syntézy konjugovaných kopolymérov spájajúcich v
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jednej molekule rôzne monoméry. Takéto materiály nachádzajú široké uplatnenie v
mikroelektronike aj vo fotovoltike, keďže ich cielaná syntéza umožňuje nielen vhodné
nastavenie šírky zakázaného pásu, ale aj zvýšenie účinnosti konverzie slnečného žiarenia na
elektrickú energiu spojením monomérov s dierovou a... -
Reiffers M. (Faculty of Humanities and Natural Sciences, Prešov University, Prešov,)10/09/2020, 10:50Oral
The new polycrystalline intermetallic compound Gd 3 Ni 2 In 4 has been prepared. We have
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investigated the structural, magnetic, magnetocaloric, thermodynamic and transport
properties. X-ray powder diffraction pattern displays that Gd 3 Ni 2 In 4 crystallizes in hexagonal
Lu 3 Co 2 In 4 – type of crystal structure. The presence of two magnetic transitions,
antiferromagnetic T N = 21 K and... -
99. Unusual properties of piezo-resonators at millikelvin temperature range and high magnetic fieldsČlovečko M. (Centre of low temperature physics, Institute of Experimental Physics SAS, Košice)10/09/2020, 11:05Oral
We present unusual properties of the commercial quartz tuning forks (QTFs) operating at
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resonance frequencies of 32 kHz, 77 kHz and 100 kHz at temperature range below 1K and in
high magnetic fields up to 7.5 T. We show that in millikelvin temperature range, the quartz
tuning forks exhibit the property of the coherent oscillations. These are manifested as a
temperature-dependent, extremely... -
Stejskal O. (Faculty of Mathematics and Physics, Charles University, Prague)10/09/2020, 11:10Oral
We present analysis of microscopic origin of magneto-optical spectra from the electronic
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structure of bcc Fe. The magneto-optical (MO) permittivity spectra are obtained by the
WIEN2k code and compared to the corresponding experimental MO Kerr effect spectra. The
ab-initio spectra are given by the Kubo formula, i.e., as a result of summation over all pairs of
electronic bands and... -
Dittrich J. (Nuclear Physics Institute CAS, Řež,)10/09/2020, 11:25Oral
Simple examples that the direction of the momentum, defined by its spectral support in a
given state, and the direction of the probability flux may be locally uncorrelated in 1+1
dimensional space-time are given for the Schrödinger and the Dirac particle with non-zero
mass. For the zero-mass Dirac particle, they are always correlated.
Jednoduché příklady ukazují, že směr...
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Kaštil J. ( Institute of Physics ASCR, Prague)10/09/2020, 11:30Oral
The Ni 1.92 Mn 1.56 Sn 0.52 belongs to a family of Heusler alloys with peculiar magnetic, structural
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and transport properties that can be potentially useful for applications. They show structural
transition from high temperature cubic austenite (A) to low temperature orthorhombic
martensite (M) with significant changes of volume, magnetization, resistivity and Hall effect.
We have... -
Křelina M. (FNSPE, Czech Technical University in Prague)10/09/2020, 11:45Oral
The future experimental facility EIC (Electron-Ion Collider) that will be built in Brookhaven
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National Laboratory in the USA introduces new opportunities for precise study in high energy
nuclear physics. This contribution is an overview of the author’s research related to this topic.
Particularly, in this contribution, we focus on topics as nuclear shadowing, quarkonia wave
function study,... -
Iľkovič S. (Faculty of Humanities and Natural Sciences, Prešov)10/09/2020, 11:50Oral
We report that this alloy has been formed in three phases Dy 5 Si 3 , Dy 3 Co 2.2 Si 1.8 , and Dy 3 Co with
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four successive magnetic transitions. The important role in the magnetic behavior plays
competing ferromagnetic and antiferromagnetic interactions in the alloy. The number of
successive magnetic transitions together with competing magnetic interactions exhibit
broadened... -
Dominec F. (Institute of Physics CAS, Prague)10/09/2020, 13:30Oral
With an aim of promoting open-source software and text files for data storage and processing,
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the author presents a program [1] that attempts to resolve the less-than ideal situation in this
field.
The usual approach is to either load the data into a point-and-click application for scientific
plotting, or learn basics of programming and type the commands in a scientific math... -
Trzeciak B. (Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague)10/09/2020, 13:30Oral
Extraction of the multi-TeV proton and lead LHC beams with a bent crystal or by using an
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internal gas target allows one to perform the most energetic fixed-target experiment ever. pp,
and pA collisions at collision energy of 115 GeV and Pbp and PbA collisions at 72 GeV can
be studied with high precision and modern techniques over a broad rapidity range. Using the
LHCb and ALICE detectors... -
Hájek F. (Institute of Physics CAS, v.v.i., Prague)10/09/2020, 13:50Oral
Development of a new material with required properties is a very complex task. Theoretical
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models for growth procedure are usually not available, at least at the beginning. Therefore,
many attempts are made to achieve required properties of the material and many
characterization datasets are obtained. However, the way how the physical properties of the
material are affected by the growth... -
Chudoba J.10/09/2020, 13:50Oral
Experimenty na největším světovém urychlovači LHC v mezinárodní laboratoři CERN
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zaznamenávají velké množství dat ze srážek protonů a těžkých iontů. Tato data jsou ukládána
ve speciálních formátech a procházejí několika kroky zpracování, než jsou vhodná pro
fyzikální analýzu. Část zpracovaných dat byla některými experimenty uvolněna pro všechny
zájemce. Spolu s daty jsou k dispozici... -
Isakov A. (Nuclear Physics Institute of the CAS, Řež)10/09/2020, 14:10Oral
The ALICE Inner Tracking System detector is undergoing a major upgrade in order to cope
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with the increased data rates and to meet the requirements as set out by the physics goals of
the experiment after Long Shutdown 2. The new ITS will be completely made up of ALPIDE
monolithic active pixel sensors based on a CMOS 180nm process. A single sensor measures
15mm x 30mm and contains half a... -
Kuldová K. (Institute of Physics CAS, Prague)10/09/2020, 14:10Oral
We describe macroscopic defects on InGaN/GaN multiple quantum well structures caused by
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accidental contamination with dust particles during the metalorganic vapour phase epitaxy.
Gallium nitride and InGaN/GaN heterostructures are promising materials for many
optoelectronic devices, such as light emitters, high-power and high-frequency electronics,
detectors of ionizing radiation,... -
Custers J. (Faculty of Mathematics and Physics, Charles University, Prague)10/09/2020, 14:30Oral
The properties of the heavy fermion compound Ce 3 PtIn 11 are rather enigmatic. Not only the
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compound possesses two inequivalent Ce-sites but at ambient pressure it exhibits two
successive antiferromagnetic (AFM) transitions at T 1 = 2.2K and T N = 2K, respectively [1].
Upon further cooling superconductivity is found with T c = 0.32K. Entropy analysis
conjectured the idea that the Ce2-ions... -
Kvapil J. (University of Birmingham, UK)10/09/2020, 14:30Oral
Charm quarks are mostly produced in hard partonic scattering processes in the early stages of
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a heavy-ion collision, before the quark-gluon plasma (QGP) is formed. Because of their large
mass the production cross section can be calculated using perturbative quantum
chromodynamics down to zero transverse momentum. Therefore, they are ideal probes of the
properties of this hot, dense, and... -
Vejpravová J. (Department of condensed matter physics, Faculty of mathematics and physics, Charles University, Prague)10/09/2020, 14:55Oral
The discovery of graphene – the archetype two-dimensional (2D) system, stimulated the
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frantic pace of research in the area of 2D materials (2DM). The rapid progress of the field,
particularly in the growth technologies, is enabling expanding the research interests in other
2DM with outstanding optical, transport, magnetic and other properties giving rise to a
plethora of tailored... -
10/09/2020, 15:30
Surprise for the persistent individuals - goodbye drink
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(foyer of building A - behind the lecture room T1) -
10/09/2020, 15:35
-
Hospodková A. (Institute of Physics CAS, Prague)Oral
Why are the III-nitride semiconductors so unique that they became the second most important
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semiconductor material after silicon? Why it was so difficult to prepare high quality nitride
layers? It was so difficult that scientist, which have partly solved this problem were five years
ago awarded by Nobel Prize. What are the most perspective applications for nitrides? What
problems have to...
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