Orbital ordering and magnetic field effect in MnV2O4

被引：159

作者：

Suzuki, T. ^{[1
]}

Katsumura, M.

Taniguchi, K.

Arima, T.

Katsufuji, T.

机构：

[1] Waseda Univ, Dept Phys, Tokyo 1698555, Japan

[2] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[3] Waseda Univ, Kagami Mem Lab Mat Sci & Technol, Tokyo 1690051, Japan

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.98.127203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We studied the structural properties of an orbital-spin-coupled spinel oxide, MnV2O4, mainly by single-crystal x-ray diffraction measurement. It was found that a structural phase transition from cubic to tetragonal and ferrimagnetic ordering occur at the same temperature (T-s,T-N=57 K). The structural phase transition was induced also by magnetic field above T-s. In addition, magnetic-field-induced alignment of tetragonal domains results in large magnetostriction below T-s. We also found that the structural phase transition is caused by the antiferro-type ordering of the V t(2g) orbitals.

引用

页数：4

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