Effect of pressure on the magnetoresistance of single crystal Nd0.5Sr0.36Pb0.14MnO3-delta

被引：115

作者：

Khazeni, K ^{[1
]}

Jia, YX ^{[1
]}

Lu, L ^{[1
]}

Crespi, VH ^{[1
]}

Cohen, ML ^{[1
]}

Zettl, A ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.76.295

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

To investigate the observed huge variations in magnetoresistance between different samples of manganite perovskites we have performed the first high-pressure measurement of magnetoresistance in single crystal Nd0.5Sr0.36Pb0.14MnO3-delta. Both resistivity and magnetoresistance are strongly suppressed upon application of pressure. The decrease in magnetoresistance with increasing pressure rules out substrate-induced compressive strain as a source of enhanced magnetoresistance. Instead, the magnetoresistance differences between samples are ascribed primarily to the more abrupt nature of the semiconductorlike to metallic phase transition at lower temperatures.

引用

页码：295 / 298

页数：4

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