Magnetic ordering in relation to the room-temperature magnetoelectric effect of Sr3Co2Fe24O41

The origin of a room-temperature magnetoelectric (ME) effect has been examined by means of neutron powder diffraction measurements for a Z-type hexaferrite Sr(3)Co(2)Fe(24)O(41). The temperature and magnetic-field dependence of the electric polarization P and several magnetic Bragg reflections show...

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Bibliographic Details
Published in:Physical review letters 2011-02, Vol.106 (8), p.087201-087201
Main Authors: Soda, Minoru, Ishikura, Taishi, Nakamura, Hiroyuki, Wakabayashi, Yusuke, Kimura, Tsuyoshi
Format: Article
Language:English
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Summary:The origin of a room-temperature magnetoelectric (ME) effect has been examined by means of neutron powder diffraction measurements for a Z-type hexaferrite Sr(3)Co(2)Fe(24)O(41). 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.
ISSN:1079-7114
DOI:10.1103/PhysRevLett.106.087201