SELF-FIELDS AND CRITICAL-CURRENT-DENSITY ANISOTROPY OF HIGH-TEMPERATURE SUPERCONDUCTORS

被引：31

作者：

CONNER, LW ^{[1
]}

MALOZEMOFF, AP ^{[1
]}

CAMPBELL, IA ^{[1
]}

机构：

[1] UNIV PARIS 11, F-91405 ORSAY, FRANCE

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 01期

关键词：

YBA2CU3O7-DELTA SINGLE-CRYSTALS; CU-O CRYSTALS; MAGNETIZATION; TRANSPORT; VORTICES; FILMS;

D O I：

10.1103/PhysRevB.44.403

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hysteresis loops of high-temperature superconductors often exhibit a peak in the irreversible magnetization around zero field. A mechanism for such a peak is proposed, involving self-fields in platelet-shaped samples which bend vortices in plane, generating a contribution from a large in-plane component of critical current density. Numerical electromagnetic calculations demonstrate this effect and show that its size depends strongly on the presence of an additional isotropic component.

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收藏

页码：403 / 406

页数：4

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