Study of stimulated dynamics and pinning of Abrikosov vortex lattice in type II superconductors in an ac magnetic field

被引：2
|
作者：
Chigvinadze, JG [1 ]
Mamniashvili, GI [1 ]
机构：
[1] Georgian Acad Sci, Inst Phys, GE-380077 Tbilisi, Georgia
来源：
LOW TEMPERATURE PHYSICS | 1998年 / 24卷 / 10期
关键词：
D O I：
10.1063/1.593672
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A dynamic mechanical method using a weak low-frequency magnetic field is proposed for investigation of stimulated dynamics and pinning in the Abrikosov vortex lattice in type II superconductors. It is shown that the application of a weak a. c. field facilitates depinning of Abrikosov vortices and additional dissipation of energy by liberated vortices. As the frequency of the field increases, a mode in which the vortices virtually do not oscillate is attained, i. e., dissipation ceases, while pinning is extremely effective. The observed effects can be successfully explained on the basis of the Gor'kov-Kopnin theory. (C) 1998 American Institute of Physics. [S1063-777X(98)00310-7]
引用
收藏
页码：712 / 716
页数：5
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