Superconducting transition behavior of TmBa3Cu3O7-δ and TmBaSrCu3O7-δ thin films

P. Gehringer, W. Lang, E. Stangl, S. Proyer

Veröffentlichungen: Beitrag in FachzeitschriftArtikelPeer Reviewed

Abstract

We report an investigation of the superconducting transitions of TmBa/sub 2/Cu/sub 3/O/sub 7- delta / and TmBaSrCu/sub 3/O/sub 7- delta / thin films. A complementary analysis of the resistive broadening around the critical temperature T/sub c/ in high magnetic fields up to 13 T and of the fluctuation-induced magnetoresistance in the Gaussian fluctuation regime considerably above T/sub c/ revealed a unique set of parameters. In that way we obtained the zero-temperature in-plane, xi /sub ab/(0), and out-of-plane, xi /sub o/(0), coherence lengths and the specific heat jump Delta C at T/sub c/. Despite a significantly different T/sub c/ and normal-state properties, the fundamental superconducting parameters are very similar in TmBa/sub 2/Cu/sub 3/O/sub 7- delta / and TmBaSrCu/sub 3/O/sub 7- delta /.
OriginalspracheEnglisch
Seiten (von - bis)311-315
Seitenumfang5
FachzeitschriftSuperlattices and Microstructures
Jahrgang21
AusgabenummerSuppl. A
PublikationsstatusVeröffentlicht - 1997

ÖFOS 2012

  • 103018 Materialphysik

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