FREQUENCY-DEPENDENCE OF THE LOCAL AC MAGNETIC RESPONSE IN TYPE-II SUPERCONDUCTORS

被引：45

作者：

PROZOROV, R

SHAULOV, A

WOLFUS, Y

YESHURUN, Y

机构：

[1] Department of Physics, Bar-Ilan University

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.52.12541

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The local ac magnetic response in type-II superconductors is analyzed on the basis of the critical state model, taking into account magnetic relaxation effects. The results show that the frequency must be introduced as an independent parameter to the model, in addition to the shielding current which itself is a function of frequency. Using a simplified model for the relaxation law, the calculated frequency dependence of the third harmonic response compares well with experimental data obtained in a Y-Ba-Cu-O crystal. Application of this analysis to ac measurements of magnetic relaxation in the short time Limit is discussed.

引用

页码：12541 / 12544

页数：4

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