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

arxiv: 1101.2276 · v4 · pith:GQ5NEWZCnew · submitted 2011-01-12 · ❄️ cond-mat.mtrl-sci · cond-mat.str-el

Multiferroic Properties of CaMn₇O₁₂

Guoquan Zhang , Shuai Dong , Zhibo Yan , Yanyan Guo , Qinfang Zhang , Seiji Yunoki , Elbio Dagotto , J.-M. Liu This is my paper

classification ❄️ cond-mat.mtrl-sci cond-mat.str-el

keywords magneticcamnmultiferroicferroelectricmultiferroicspolarizationpropertiesappearance

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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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Multiferroic Properties of CaMn₇O₁₂

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