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arXiv · 1101.2276

Multiferroic Properties of CaMn$_7$O$_{12}$

Guoquan Zhang·Shuai Dong·Zhibo Yan·Yanyan Guo·Qinfang Zhang·Seiji Yunoki·Elbio Dagotto·J. -M. Liu
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Abstract

We report that CaMn$_7$O$_{12}$ is a new magnetic multiferroic material. The appearance of a ferroelectric polarization coinciding with the magnetic phase transition ($\sim90$ K) suggests the presence of ferroelectricity induced by magnetism, further confirmed by its strong magnetoelectric response. With respect to other known magnetic multiferroics, CaMn$_7$O$_{12}$ 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 catalogue of doped oxides.

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Guoquan Zhang, Shuai Dong, Zhibo Yan, Yanyan Guo, Qinfang Zhang, Seiji Yunoki, Elbio Dagotto, J. -M. Liu. 2011-01-12. Multiferroic Properties of CaMn$_7$O$_{12}$. https://doi.org/10.1103/physrevb.84.174413

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