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Contactless determination of critical current density of superconducting films
- 1.0383731 - FZÚ 2013 RIV US eng J - Journal Article
Janů, Zdeněk - Švindrych, Zdeněk - Baničová, L.
Contactless determination of critical current density of superconducting films.
IEEE Transactions on Applied Superconductivity. Roč. 22, č. 3 (2012), "9500804-1"-"9500804-4". ISSN 1051-8223. E-ISSN 1558-2515
R&D Projects: GA MŠMT(CZ) ME10069
Institutional research plan: CEZ:AV0Z10100520
Keywords : ac susceptibility * critical state * thin films
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.199, year: 2012
We discuss an inductive method of contactless estimation of the critical depinning current density in films and its temperature dependence. The method is based on a measurement of the magnetic moment of the film induced in an applied ac magnetic field oriented perpendicularly to the film. Mapping of the ac susceptibility computed on the basis of model magnetization loops and measured magnetization loops as a function of the applied field and temperature allows unambiquously find the critical current density and its temperature dependence.
Permanent Link: http://hdl.handle.net/11104/0213580
Number of the records: 1