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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.
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页数：4
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