CEC-ICMC 2015 - Timetable, Abstracts and Presentations

Session

M3OrA - Superconductor Wires III: Thin Films

M3OrA

1 Jul 2015, 11:00

JW Marriott Starr Pass Resort

Conveners

M3OrA - Superconductor Wires III: Thin Films

• Herbert C. Freyhardt (University of Houston)
• Timothy Haugan (U.S. Air Force Research Laboratory)

260. [Invited] LOW TEMPERATURE- HIGH FIELD PERFORMANCES OF IRON CALCHOGENIDES THIN FILMS

carlo ferdeghini (CNR)

01/07/2015, 11:00

ICMC-07 - Pnictides and New Superconducting Materials

Invited Oral Presentation

Among the various families of Fe-based superconductors, iron chalcogenides, while present a transition temperature not particularly high, show great advantages for potential applications in high field, albeit at liquid helium temperature. In thin films, the strain can push the critical temperature up to 21K, the critical field up to more than 50 T and the irreversibility field close to this...

369. MOI study of grain boundary transparencies in [001] tilt (Yb0.7Ca0.3)Ba2Cu3O7-d 6 and 9 degree bi-crystal thin films.

Dr Anatolii Polyanskii (FSU, NHMFL, ASC)

01/07/2015, 11:30

ICMC-05 - Thin Films

Contributed Oral Presentation

Low angle grain boundaries (GB) are still the most important current-limiting mechanism operating in rare earth barium copper oxide (REBCO) coated conductors. While Ca-doping is found to improve the transparency of low angle GBs in weak fields at high temperatures, the growing interest of building high field magnets using REBCO coated conductors requires evaluating the effectiveness of...

307. Significant Enhancement of Bc2 at 20-25 K for MgB2 Thin Films via Controlled oxygen doping

Guangze Li (The Ohio State University)

01/07/2015, 11:45

ICMC-05 - Thin Films

Contributed Oral Presentation

Various dopants have been investigated for increasing Bc2 in MgB2. Most of these have not been beneficial, with the exception of C or C-bearing materials (increasing 4 K Bc2) and Dy2O3 (at higher temperatures). While Bc2 approximately doubled with C additions at 4.2 K, the high Bc2 results of the thin films have not been replicated in wires. Hence we re-investigate oxygen additions, with a...

206. Structure and properties of oxygen-containing thin MgB2 films

Prof. Tatiana Prikhna (Institute for Superhard Materials of the National Academy of Sciences of Ukraine)

01/07/2015, 12:00

ICMC-05 - Thin Films

Contributed Oral Presentation

The results of the investigations of crystal structure, phase composition, relief, and superconducting characteristics of the oxygen-containing thin films from magnesium diboride (MgB2), which are deposited on the dielectric wafers by a magnetron sputtering of the magnesium diboride targets, are presented. It has been demonstrated that depending on the parameters of the deposition and...

549. Large Jc enhancement and matching effects by Ba2Y(Nb/Ta)O6 nanocolumns in YBa2Cu3O7-x thin films

Dr Jens Haenisch (Karlsruhe Institute for Technology)

01/07/2015, 12:15

ICMC-10 - Flux Pinning and Critical Current

Contributed Oral Presentation

YBa2Cu3O7-x based coated conductors have large potential in such diverse applications as wires/cables, motors/generators, high-field coils, and superconducting permanent magnets, each of them with a certain range of temperature and magnetic field and a certain need in magnitude and isotropicity in critical current density Jc. In order to use the full potential of YBa2Cu3O7-x, it is mandatory...