Magnetoelectric Coupling in the Pyrochlore Ruthenate Gd2Ru2O7

被引：4

作者：

Okamura, Takuma ^{[1
]}

Okazaki, Ryuji ^{[1
,3
]}

Taniguchi, Hiroki ^{[1
]}

Yasui, Yukio ^{[2
]}

Terasaki, Ichiro ^{[1
]}

机构：

[1] Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan

[2] Meiji Univ, Dept Phys, Kawasaki, Kanagawa 2148571, Japan

[3] Tokyo Univ Sci, Fac Sci & Technol, Dept Phys, Noda, Chiba 2788510, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2017年 / 86卷 / 08期

关键词：

DIELECTRIC-CONSTANT; R2RU2O7; R;

D O I：

10.7566/JPSJ.86.084708

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have prepared polycrystalline samples of Gd2Ru2O7, and have measured the dielectric constant, magnetization and magnetostriction in external fields from 0 to 7 T below 15 K. We find that the dielectric constant of Gd2Ru2O7 significantly changes with external fields, and reveal a finite magnetoelectric coupling in this oxide. Using a simple model in which the spins on the Gd ions feel an internal magnetic field of 7 T from the Ru clusters, we have explained magnetization and magnetoelectric effects qualitatively.

引用

页数：4

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