The Effect Of Magnetic Relaxation on Ac Susceptibility In Type-II Superconductors

被引：0
作者：
Yufeng Zhao
Ping Ma
机构：
[1] Lanzhou University of Technology,School of Science
来源：
Journal of Superconductivity and Novel Magnetism | 2023年 / 36卷
关键词：
Ac susceptibility; Magnetic relaxation; Flux dynamics;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this paper, the study investigates the effect of magnetic relaxation on the ac susceptibility in type-II superconductors. To this end, the flux creep equation of ac response is deduced, and the characteristic relaxation time is modified. The relaxation effect is a key feature of flux creep. The results show that the change of the effective relaxation time directly affects the effective potential barrier and the approximate relaxation rate of the superconductor at a certain frequency when the critical current density and critical temperature are fixed, which in turn can cause significant changes in the imaginary part of the AC susceptibility. The results are expected to contribute to a better understanding of the flux dynamics of superconductors from a theoretical perspective.
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页码：1967 / 1975
页数：8
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