Anomalous thermal hysteresis in magnetization and resistivity of La1-xSrxMnO3 -: art. no. 187201

被引：37

作者：

Dho, J ^{[1
]}

Kim, WS ^{[1
]}

Hur, NH ^{[1
]}

机构：

[1] Korea Res Inst Stand & Sci, Ctr CMR Mat, Taejon 305600, South Korea

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.87.187201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have investigated thermal hysteresis of magnetization and resistivity in La1-xSrMnO3 (0.5 less than or equal to x greater than or equal to 0.6) with an A-type antiferromagnetic structure. For 0.52 less than or equal to x less than or equal to 0.56, the magnetization curve exhibits a counterclockwise (CCW) thermal hysteresis about TN, while the resistivity curve shows a clockwise (CW) thermal hysteresis. On the other hand, samples with 0.58 less than or equal to x less than or equal to 0.6 exhibit CCW thermal hystereses in both magnetization and resistivity curves. Remarkably, for x = 0.58 the rotational direction of thermal hysteresis of resistivity changes from CCW to CW by the magnetic field. This anomalous hysteretic behavior is explained by the competing interaction between the three-dimensional (3D) metallic ferromagnetic and two-dimensional (2D) metallic A-type antiferromagnetic phases.

引用

页码：187201 / 1

页数：4

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