Magnetic Ordering in Relation to the Room-Temperature Magnetoelectric Effect of Sr3Co2Fe24O41

被引：143

作者：

Soda, Minoru ^{[1
]}

Ishikura, Taishi ^{[1
]}

Nakamura, Hiroyuki ^{[1
]}

Wakabayashi, Yusuke ^{[1
]}

Kimura, Tsuyoshi ^{[1
]}

机构：

[1] Osaka Univ, Div Mat Phys, Grad Sch Engn Sci, Osaka 5608531, Japan

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 08期

关键词：

Bragg reflection - Conical spin structure - Dzyaloshinskii-moriya - Electric polarization - Magnetic field dependences - Neutron powders - Propagation vector - Z-type hexaferrite;

D O I：

10.1103/PhysRevLett.106.087201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The origin of a room-temperature magnetoelectric (ME) effect has been examined by means of neutron powder diffraction measurements for a Z-type hexaferrite Sr3Co2Fe24O41. The temperature and magnetic-field dependence of the electric polarization P and several magnetic Bragg reflections show that a commensurate magnetic order with a (0,0,1) propagation vector has an intimate connection with the ME effect. The room-temperature ME effect can be understood in terms of the appearance of P which is induced by a transverse conical spin structure through the inverse Dzyaloshinskii-Moriya mechanism in analogy with Y-type hexaferrites.

引用

页数：4

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