Reversible magnetization of irradiated high-T-c superconductors

被引:34
作者
Bulaevskii, LN [1 ]
Vinokur, VM [1 ]
Maley, MP [1 ]
机构
[1] ARGONNE NATL LAB,DIV MAT SCI,ARGONNE,IL 60439
关键词
D O I
10.1103/PhysRevLett.77.936
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We calculate the free energy and equilibrium magnetization in highly anisotropic layered superconductors with strong defects produced by irradiation. We account for the entropy associated with different configurations of pancakes inside and outside of strong defects. We show how magnetization measurements provide information on pinning energy and how they determine the magnetic fields and temperatures at which pancake vortices are trapped inside strong defects. We discuss also the behavior of magnetization which may signal about decoupling of pancakes inside columnar defects.
引用
收藏
页码:936 / 939
页数:4
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