Structural instability of the charge ordered compound Nd0.5Sr0.5MnO3 under a magnetic field

被引：80

作者：

Mahendiran, R ^{[1
]}

Ibarra, MR

Maignan, A

Millange, F

Arulraj, A

Mahesh, R

Raveau, B

Rao, CNR

机构：

[1] Univ Zaragoza, CSIC, Dept Fis Mat Condensada, E-50009 Zaragoza, Spain

[2] Univ Zaragoza, CSIC, ICMA, E-50009 Zaragoza, Spain

[3] Inst Sci Mat & Rayonnement, Lab CRISMAT, F-14050 Caen, France

[4] Univ Caen, CNRS, UMR 6508, F-14050 Caen, France

[5] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.82.2191

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report an anomalous magnetostriction behavior of the charge ordered compound Nd0.5Sr0.5MnO3. We have found that the applied magnetic field not only gives rise to a large negative magnetoresistance but also produces a huge positive magnetovolume effect. This unusual effect is explained considering that the applied magnetic field induces a structural transition at which the volume drastically increases. This effect is also seen in the anisotropic magnetostriction which shows clear anomalies at the field induced transition.

引用

页码：2191 / 2194

页数：4

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