''Phase reversal'' of non-resonant microwave absorption in superconducting YBaCuO/CuO powder mixtures

被引：1

作者：

Anand, A ^{[1
]}

Rastogi, A ^{[1
]}

Hegde, MS ^{[1
]}

Bhat, SV ^{[1
]}

机构：

[1] INDIAN INST SCI,SOLID STATE & STRUCT CHEM UNIT,BANGALORE 560012,KARNATAKA,INDIA

来源：

SOLID STATE COMMUNICATIONS | 1996年 / 99卷 / 09期

关键词：

superconductors; chemical synthesis;

D O I：

10.1016/0038-1098(96)00178-0

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Non-resonant microwave absorption is studied as a function of temperature and composition in superconducting YBa2Cu3O7/CuO ceramic composite samples. In pure YBa2Cu3O7 only normal field dependence of the absorption is observed, where as in composites an anomalous non-monotonic field dependence is seen. The results are explained using an extended resistively shunted junction model and invoking the occurrence of junctions with phase difference psi(0) such that pi/2 < psi(0) < 3 pi/2. Copyright (C) 1996 Elsevier Science Ltd

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收藏

页码：665 / 668

页数：4

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