Distorted perovskite with eg1 configuration as a frustrated spin system -: art. no. 060403

被引：515

作者：

Kimura, T

Ishihara, S

Shintani, H

Arima, T

Takahashi, KT

Ishizaka, K

Tokura, Y

机构：

[1] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan

[2] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[3] Univ Tsukuba, Inst Sci Mat, Tsukuba, Ibaraki 3058573, Japan

来源：

PHYSICAL REVIEW B | 2003年 / 68卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.68.060403

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The evolution of spin- and orbital-ordered states has been investigated for a series of insulating perovskites RMnO3 (R=La,Pr,Nd,...). RMnO3 with a large GdFeO3-type distortion is regarded as a frustrated spin system having ferromagnetic nearest-neighbor and antiferromagnetic (AF) next-nearest-neighbor (NNN) interactions within a MnO2 plane. The staggered orbital order associated with the GdFeO3-type distortion induces the anisotropic NNN interaction, and yields unique sinusoidal and up-up-down-down AF ordered states in the distorted perovskites with e(g)(1) configuration.

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