High field pinning-effects in YBa2Cu3O7/La0.7Sr0.3MnO3 nanocrystalline bilayers

被引：6
|
作者：
Lin, JG [1 ]
Cheng, SL
机构：
[1] Natl Taiwan Univ, Ctr Condensed Matter Sci, Taipei 106, Taiwan
[2] Natl Taiwan Univ, Ctr Nanostorage Res, Taipei 106, Taiwan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2006年 / 437-38卷
关键词：
pinning effect; ferromagnetic/superconducting bilayer; critical current;
D O I：
10.1016/j.physc.2005.12.030
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The pinning behavior in YBa2Cu3O7/La0.7Sr0.3MnO3 (YBCO/LSMO) nanocrystalline bilayers grown on (100) LaAlO3 substrate has been investigated. It is found that by increasing the thickness of LSMO(t) from 0 to 40 nm, the critical current density J(c) of YBCO is suppressed. However, in the bilayer with t = 30 nm, an enhancement of J(c) is observed at high field, which may be caused by the magnetic pinning of LSMO layer. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：187 / 189
页数：3
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