Multiferroic properties of CaMn7O12

被引：149

作者：

Zhang, Guoquan ^{[1
]}

Dong, Shuai ^{[2
]}

Yan, Zhibo ^{[1
]}

Guo, Yanyan ^{[1
]}

Zhang, Qinfang ^{[3
,4
]}

Yunoki, Seiji ^{[3
,4
]}

Dagotto, Elbio ^{[5
,6
]}

Liu, J. -M. ^{[1
,7
]}

机构：

[1] Nanjing Univ, Solid State Microstruct Lab, Nanjing 210093, Peoples R China

[2] Southeast Univ, Dept Phys, Nanjing 211189, Peoples R China

[3] RIKEN, Computat Condensed Matter Phys Lab, Wako, Saitama 3510198, Japan

[4] Japan Sci & Technol Agcy, CREST, Kawaguchi, Saitama 3320012, Japan

[5] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

[6] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA

[7] Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China

来源：

PHYSICAL REVIEW B | 2011年 / 84卷 / 17期

基金：

美国国家科学基金会; 日本科学技术振兴机构;

关键词：

CHARGE; TRANSITION;

D O I：

10.1103/PhysRevB.84.174413

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report that CaMn7O12 is a new magnetic multiferroic material. The appearance of a ferroelectric polarization coinciding with the magnetic phase transition (similar to 90 K) suggests the presence of ferroelectricity induced by magnetism, further confirmed by its strong magnetoelectric response. With respect to other known magnetic multiferroics, CaMn7O12 displays attractive multiferroic properties, such as a high ferroelectric critical temperature and large polarization. More importantly, these results open a new avenue to search for magnetic multiferroics in the catalog of doped oxides.

引用

页数：5

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