Multiferroic properties of CaMn7O12

We report that CaMn7O12 is a new magnetic multiferroic material. The appearance of a ferroelectric polarization coinciding with the magnetic phase transition ( 90 K) suggests the presence of ferroelectricity induced by magnetism, further confirmed by its strong magnetoelectric response. With respect...

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Bibliographic Details
Published in:	Physical review. B, Condensed matter and materials physics Vol. 84; no. 17
Main Authors:	Zhang, Guoquan, Dong, Shuai, Yang, Zhibo, Guo, Yanyan, Zhang, Qinfang, Yunoki, Seiji, Dagotto, Elbio R, Liu, J.-M.
Format:	Journal Article
Language:	English
Published:	United States 14-11-2011
Subjects:	CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS CRITICAL TEMPERATURE MAGNETIC MATERIALS MAGNETISM OXIDES POLARIZATION
Online Access:	Get full text
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Summary:	We report that CaMn7O12 is a new magnetic multiferroic material. The appearance of a ferroelectric polarization coinciding with the magnetic phase transition ( 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.
Bibliography:	DE-AC05-00OR22725 USDOE Office of Science (SC)
ISSN:	1098-0121 1550-235X
DOI:	10.1103/PhysRevB.84.174413