DIRECT MAGNETOOPTICAL MEASUREMENTS OF ANISOTROPIC CRITICAL CURRENTS IN (LA1-XSRX)(2)CUO4 SINGLE-CRYSTALS

被引：9

作者：

DURIN, CA ^{[1
]}

GAMMEL, PL ^{[1
]}

WOLFE, R ^{[1
]}

FRATELLO, VJ ^{[1
]}

BISHOP, DJ ^{[1
]}

KIMURA, T ^{[1
]}

KITAZAWA, K ^{[1
]}

KISHIO, K ^{[1
]}

机构：

[1] UNIV TOKYO,BUNKYO KU,TOKYO 113,JAPAN

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.49.3608

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on measurements of the penetration of magnetic flux in single crystals of (La1-xSrx)(2)CuO4 as seen using the magnetic garnet imaging technique. The technique measures the spatial and temporal dependence of the magnetization by using a wafer of doped magnetic garnet material placed in contact with the sample to be measured and imaged with an optical microscope. We have directly measured the critical current anisotropy in this system as a function of temperature and doping and found clear evidence for intrinsic pinning as well as a pronounced dependence of the anisotropy on doping.

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页码：3608 / 3611

页数：4

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