Magnetoresistance effect in bulk samples of La0.67Ca0.33MnO3 under a low magnetic field

被引：5

作者：

Bhar, GC ^{[1
]}

Chatterjee, U

Tsukamoto, K

Yanagisawa, T

Obara, A

Shen, H

机构：

[1] Univ Burdwan Golapbag, Laser Lab, Dept Phys, Burdwan 713104, W Bengal, India

[2] Div Optoelect, Electrotech Lab, Ibaraki 305, Japan

[3] Acad Sinica, Shanghai Inst Met, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1998年 / 188卷 / 1-2期

关键词：

magnetoresistance; perovskites; sol-gel method; resistivity;

D O I：

10.1016/S0304-8853(98)00200-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetoresistance effect of bulk samples of La0.67Ca0.33MnO3, prepared by the sol-gel method has been studied under a low applied magnetic field. Quite a large (-37%) negative magnetoresistance ratio (MR) has been obtained at a relatively 'higher' temperature (190 K) with an applied external magnetic field intensity as low as 0.6 T. Observation of the MR peak at a temperature greater than the insulator-metal transition temperature has been made for the first time. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：180 / 184

页数：5

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