ELECTRICAL-RESISTIVITY ANOMALIES IN THE PEROVSKITES LA1-XSRXMNO3

被引：10

作者：

CHAINANI, A

MATHEW, M

SARMA, DD

DAS, I

SAMPATHKUMARAN, EV

机构：

[1] INDIAN INST SCI, SOLID STATE & STRUCT CHEM UNIT, BANGALORE 560012, KARNATAKA, INDIA

[2] TATA INST FUNDAMENTAL RES, BOMBAY 400005, INDIA

来源：

PHYSICA B-CONDENSED MATTER | 1993年 / 186-88卷

关键词：

D O I：

10.1016/0921-4526(93)90766-Y

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The temperature dependence of the resistivity of La1-xSrxMnO3 indicates that the samples are semiconducting for x = 0.0 and 0.1, but metallic for x greater-than-or-equal-to 0.2 at lower temperatures. The metallic compositions exhibit broad maxima in the range 150-250 K and also a magnetic hysteresis at 300 K. Below 30 K, we see an increase in the resistivity for the metallic samples, the temperature dependence of which indicates the importance of electron-electron interactions in these systems.

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页码：995 / 997

页数：3

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