Critical current density from magnetization hysteresis data using the critical-state model

被引：5

作者：

Tulapurkar, AA ^{[1
]}

机构：

[1] Tata Inst Fundamental Res, Dept Condensed Matter Phys, Mumbai 400005, India

来源：

PHYSICAL REVIEW B | 2001年 / 64卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.64.014508

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present an exact method to extract the critical current density (J(c).) from the irreversible magnetization data (M-H) using the Bean's critical-state model. The weakly pinned superconducting samples are known to display an anomalous peak in J(c) with the increase in H, which is referred to as the peak effect phenomenon and it is in contemporary focus. We show that the shape of the hysteresis bubble identifying peak effect in J(c)(H) in the M-H data is asymmetric.

引用

页数：5

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