EVIDENCE FOR INDIVIDUAL VORTEX PINNING IN CERAMIC YBA2CU3O7-DELTA

被引：7
|
作者：
TESSLER, LR [1 ]
PROVOST, J [1 ]
MAIGNAN, A [1 ]
机构：
[1] INST SCI MAT & RAYONNEMENT,LAB CRISMAT,F-14032 CAEN,FRANCE
来源：
APPLIED PHYSICS LETTERS | 1991年 / 58卷 / 05期
关键词：
D O I：
10.1063/1.104576
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We measured the pinning force density F(p) in high quality YBa2Cu3 O7-delta ceramics as a function of the temperature and magnetic field up to 5 T. The results indicate that near 60 K the magnetic vortices are pinned individually. This implies that at this temperature the main pinning mechanism involves localized pinning centers separated by short distances rather than twin boundaries.
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收藏
页码：528 / 530
页数：3
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