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Field induced microwave absorption in single crystal BI (2212): Evidence for a superconductive glass state

Authors
Journal
Physica C Superconductivity
0921-4534
Publisher
Elsevier
Publication Date
Identifiers
DOI: 10.1016/0921-4534(89)90826-5
Disciplines
  • Physics

Abstract

Abstract The field induced microwave absorption P(H) at 35 GHz in Bi 2212 micaceous single crystals exhibits remarkable variations as temperature is increased from 1.3 K to T c. For T≲16 K, the hysteresis loops are highly reminiscent of those observed in spin glasses.At 30 ≲T ≲50 K, they resembel those of a type II superconductor. As suggested by the magnetization data, the micaceous nature causes a large enhancement in P(H) for 50<T<70 K, while above 70 K, the layers become effectively decoupled.

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