title: Magnetic ordering in relation to the room-temperature magnetoelectric effect of Sr3Co2Fe24O41.
abstract: 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.
authors.affiliation: Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan.
authors.forename: Minoru
authors.initials: M
authors.lastname: Soda
authors.forename: Taishi
authors.initials: T
authors.lastname: Ishikura
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Nakamura
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Wakabayashi
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Kimura