Relation between giant volume magnetostriction and colossal magnetoresistance near the Curie temperature of Sm0.55Sr0.45MnO3

被引：12

作者：

Abramovich, AI ^{[1
]}

Koroleva, LI ^{[1
]}

Michurin, AV ^{[1
]}

Gorbenko, OY ^{[1
]}

Kaul', AR ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Moscow 119899, Russia

来源：

PHYSICS OF THE SOLID STATE | 2000年 / 42卷 / 08期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/1.1307060

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The magnetic, transport, and elastic properties of Sm0.55Sr0.45MnO3 have been established to be. interrelated. At the Curie point, one observes a large volume compression Delta V/V approximate to 0.1%, a sharp minimum in the temperature dependence of negative volume magnetostriction omega(T), and a maximum in the temperature dependence of the electrical resistivity. Giant negative volume magnetostriction omega = -5 x 10(-4) has been found in a magnetic field H = 0.9 T, which is accompanied by a colossal negative magnetoresistance of 44% in the same field. The results obtained are discussed in terms of a model of electronic phase separation. (C) 2000 MAIK "Nauka/Interperiodica".

引用

页码：1494 / 1498

页数：5

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