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.
引用
收藏
页码：528 / 530
页数：3
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