LOW FIELD MAGNETORESISTANCE UP TO 1T IN AS DOPED Y1BA2CU3O9-Y

被引：8

作者：

DAS, SN

KAPOOR, R

DUBEY, SS

DHEER, PN

机构：

[1] Department of Physics and Astrophysics, University of Delhi, Delhi

来源：

PHYSICA B | 1990年 / 163卷 / 1-3期

关键词：

D O I：

10.1016/0921-4526(90)90181-S

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have measured a large magnetoresistance at low fields up to 1 T below a temperature of 81 K in an As doped Y1Ba2Cu3O9-y sample showing zero resistance at 77 K. Doping the sample with 10 wt%. As during preparation results in a marked decrease in the Tc and a broadening of the transition width as seen from a comparison of the resistivity plots of a pure and a doped sample. This is probably due to As going to Cu sites or the interspaces in the Y1Ba2Cu3O9-y lattice. The magnetoresistance of the doped sample is comparable in magnitude to that of a pure Y1Ba2Cu3O9-y sample below the onset transition temperature. © 1990.

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页码：245 / 248

页数：4

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