Paramagnetic Meissner effect at high fields in melt-textured YBa2Cu3O7-δ

被引：21

作者：

Dias, FT

Pureur, P

Rodrigues, P

Obradors, X

机构：

[1] Univ Fed Rio Grande Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil

[2] UEPG, Dept Fis, BR-84031510 Ponta Grossa, PR, Brazil

[3] CSIC, Inst Ciencia Mat, Bellaterra 08193, Catalunya, Spain

来源：

PHYSICA C | 2001年 / 354卷 / 1-4期

关键词：

paramagnetic Meissner effect; melt-textured YBCO; field-cooled magnetization;

D O I：

10.1016/S0921-4534(01)00067-3

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We observe the paramagnetic Meissner effect in melt-textured YBa2Cu3O7-delta samples after cooling in fields from 1 up to 50 kOe. The results suggest that the paramagnetic moments are primarily generated by compression of the magnetic flux into the sample in the course of the field cooling procedure. We also observe that the field-cooled moments relax towards positive values in experiments performed at constant field and temperature. (C) 2001 Published by Elsevier Science B.V.

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收藏

页码：219 / 222

页数：4

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