Magnetodielectric properties of spin-orbital coupled system Mn3O4

被引：88

作者：

Suzuki, Takehito ^{[1
]}

Katsufuji, Takuro ^{[1
,2
,3
]}

机构：

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

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

[3] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama 3320012, Japan

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.77.220402

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We studied the dielectric properties and strain of spinel Mn3O4 with applied magnetic field. It was found that the dielectric constant (epsilon(1)) exhibits a large magnetic-field (H) dependence, which is anisotropic both against the direction of the magnetic field and the electric field in the magnetically ordered phases below T-N=43 K. It was also found that the epsilon(1)(H) exhibits distinctively different behaviors at three different magnetic phases. These results can be explained by the change of the orbital state of Mn3+ with the applied magnetic field due to the inverse process of single-ion spin anisotropy.

引用

页数：4

共 17 条

[1]

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[2] Magnetic excitations and orbital physics in the ferrimagnetic spinels MnB2O4 (B=Mn,V) [J].