Giant magnetoresistance in La0.8Sr0.2FexCo1-xO3 (0.025<=X<=0.3)

被引：18

作者：

Barman, A

Ghosh, M

Biswas, S

De, SK

Chatterjee, S

机构：

[1] Department of Materials Science, Indian Assoc. the Cultiv. of Sci., Jadavpur

来源：

APPLIED PHYSICS LETTERS | 1997年 / 71卷 / 21期

关键词：

D O I：

10.1063/1.120273

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The electrical resistance and magnetoresistance of La0.8Sr0.2FexCo1-xO3 (0.025 less than or equal to X less than or equal to 0.3) have been studied at low temperatures down to 1.5 K and magnetic fields up to 7.5 T. The large magnetoresistance at high and low temperature has been found. The magnetoresistance exhibits a broad minima in the temperature interval between 150 and 50 K for all the compositions. The large magnetoresistance and its broad minima may be interpreted as the interplay of spin state transition, Jahn-Teller distortion, and orbital ordering of Co ions. (C) 1997 American Institute of Physics.

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页码：3150 / 3152

页数：3

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