Asymmetric flux pinning in a regular array of magnetic dipoles

被引：268
作者：
Morgan, DJ [1 ]
Ketterson, JB
机构：
[1] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA
[2] Northwestern Univ, Dept Elect & Comp Sci, Evanston, IL 60208 USA
来源：
PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 16期
关键词：
D O I：
10.1103/PhysRevLett.80.3614
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The effect of a regular array of magnetic dipoles embedded in a superconducting film was investigated. A large asymmetry in critical currents was found between when the magnetic dipoles are aligned and antialigned with respect to an externally applied magnetic field. Enhanced pinning effects were observed when the flux lattice and the dipole lattice were commensurate. The data are used to infer pinning mechanisms, strengths, and sites.
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收藏
页码：3614 / 3617
页数：4
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