Conveners
MAGNETISM AND MAGNETIC MATERIALS: BULK AND THIN FILMS
- Jochen Litterst (TU Braunschweig)
MAGNETISM AND MAGNETIC MATERIALS: BULK AND THIN FILMS
- Yutaka Yoshida
MAGNETISM AND MAGNETIC MATERIALS: BULK AND THIN FILMS
- Stephan COTTENIER
Dr
Rainer Sielemann
(Helmholtz-Zentrum Berlin für Materialien und Energie, D-14109 Berlin, Germany)
14/09/2010, 11:10
Magnetism and Magnetic materials - Bulk and thin layers
INVITED SPEAKER
Diluted magnetic semiconductors form a special class of magnetic materials which has drawn a lot of attention over the last years both for the interest in the basic physics involved and for possible applications, e.g., in the field of spintronics. However, there is no general agreement on the origin of this type of magnetism. Various coupling mechanisms between the magnetic ions have been...
Mr
Torben Esmann Mølholt
(University of Iceland)
14/09/2010, 11:50
Magnetism and Magnetic materials - Bulk and thin layers
ORAL CONTRIBUTION
T. E. Mølholt1, R. Mantovan2, H. P. Gunnlaugsson3, K. Bharuth-Ram4, M. Fanciulli2,5, K. Johnston6, Y. Kobayashi7, G. Langouche8, H. Masenda9, D. Naidoo9, S. Ólafsson1,
R. Sielemann10, G. Weyer3, H. P. Gíslason1
1Science Institute, University of Iceland, Reykjavík, Iceland, e-mail: tem4@hi.is; 2Laboratorio MDM-IMM-CNR, Milano, Italy; 3Department of Physics and Astronomy, Aarhus...
Prof.
Artur Carbonari
(IPEN)
14/09/2010, 12:10
Magnetism and Magnetic materials - Bulk and thin layers
ORAL CONTRIBUTION
The search for room temperature ferromagnetism in wide band gap semiconductor oxides has been quite intensive in the last years. In particular, ZnO has attracted attention since theoretical calculations[1,2] have indicated that ZnO when doped with a transition metal like Co or Mn should present ferromagnetism at room temperature. The results instead of clarifying this issue have however...
Prof.
Elisa Baggio Saitovitch
(Centro Brasileiro de Pesquisas Fisicas)
14/09/2010, 14:00
Magnetism and Magnetic materials - Bulk and thin layers
ORAL CONTRIBUTION
Abstract
Dr
Pierre Dalmas de Reotier
(CEA Grenoble)
14/09/2010, 14:20
Magnetism and Magnetic materials - Bulk and thin layers
ORAL CONTRIBUTION
See below
Jochen Litterst
(TU Braunschweig)
14/09/2010, 14:40
Magnetism and Magnetic materials - Bulk and thin layers
ORAL CONTRIBUTION
The natural mineral azurite Cu3(CO3)2(OH)2 represents a new type of low-dimensional frustrated quantum spin system with a diamond spin chain as basis. From specific heat [1] there is evidence for a phase transition at ca. 1.8 K which however is magnetically still ill-defined. Earlier muon spin rotation experiments [2] have indicated a magnetic transition yet no systematic study has been...
Dr
Zaher Salman
(Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland)
14/09/2010, 15:00
Magnetism and Magnetic materials - Bulk and thin layers
ORAL CONTRIBUTION
text
Prof.
S.N. Mishra
(Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai-400005, India)
14/09/2010, 15:20
Magnetism and Magnetic materials - Bulk and thin layers
ORAL CONTRIBUTION
Defect induced magnetic interaction in highly oriented pyrolytic graphite (HOPG): A local investigation using TDPAD method.
S.N. Mishra,1 S.K. Mohanta,1,2 S.K. Srivastava2
1Dept. of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai-400005, India,
e-mail: mishra@tifr.res.in
2Dept. of Physics and Meteorology, Indian Institute of Technology, Kharagpur-721302,...
Wayne Hutchison
(University of NSW at ADFA)
16/09/2010, 14:40
Magnetism and Magnetic materials - Bulk and thin layers
ORAL CONTRIBUTION
The family of metamagnetic compounds RNiAl4 (R = rare earth) exhibits a range of interesting magnetic behaviours. There are multiple magnetic phases, and crystal field driven differences in anisotropy and behaviour when different rare earth ions (R) are present in the compound. TbNiAl4 is one illustrative example. It has two phase transitions (three phases) as a function of temperature in...
J. N. Gonçalves
(Departmento de Física and CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal)
16/09/2010, 15:00
Magnetism and Magnetic materials - Bulk and thin layers
ORAL CONTRIBUTION
text + references
Prof.
Valery Orlov
(Russian Research Center "Kurchatov Institute", Moscow 123182, Russia)
16/09/2010, 15:20
Magnetism and Magnetic materials - Bulk and thin layers
ORAL CONTRIBUTION
Unique magnetic properties were earlier found by measuring the NQI parameters in a number of bismuth (III) oxy compounds with s- and p-electrons hitherto classified as diamagnetic [1]. In α-Bi2O3 single crystal the magnetoelectric effect and paramagnetism depending on magnetic prehistory of the sample were observed [1].
In Bi4Ge3O12 (BGO), local magnetic fields (Hloc) of the order of...
