Uniaxial-pressure induced ferromagnetism of enhanced paramagnetic Sr3Ru2O7

被引：45

作者：

Ikeda, SI ^{[1
]}

Shirakawa, N

Yanagisawa, T

Yoshida, Y

Koikegami, S

Koike, S

Kosaka, M

Uwatoko, Y

机构：

[1] AIST, Nanoelect Res Inst, Tsukuba, Ibaraki 3058568, Japan

[2] JSPS, Chiyoda Ku, Tokyo 1028471, Japan

[3] Saitama Univ, Dept Phys, Urawa, Saitama 3388570, Japan

[4] Univ Tokyo, ISSP, Kashiwa, Chiba 2778581, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2004年 / 73卷 / 05期

关键词：

Sr3Ru2O7; Sr2RuO4; ferromagnetism; uniaxial pressure; nearly ferromagnetic metal; magnetization; structural distortion;

D O I：

10.1143/JPSJ.73.1322

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a uniaxial pressure-dependence of magnetism in layered perovskite strontium ruthenate Sr3Ru2O7. By applying a relatively small uniaxial pressure, greater than 0.1 GPa normal to the RuO2 layer, ferromagnetic ordering manifests below 80K from the enhanced-paramagnet. Magnetization at 1 kOe and 2 K becomes 100 times larger than that under ambient condition. Uniaxial pressure dependence of Curie temperature T-C suggests the first order magnetic transition. Origin of this uniaxialpressure induced ferromagnetism is discussed in terms of the rotation of RuO6 octahedra within the RuO2 plane.

引用

页码：1322 / 1325

页数：4

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