Negative magnetostrictive magnetoelectric coupling of BiFeO3

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Title
Negative magnetostrictive magnetoelectric coupling of BiFeO3
Author(s)
Sanghyun Lee; Fernandez-Diaz, M.T.; Kimura, H.; Noda, Y.; Adroja, D.T.; Lee, Seongsu; Park, Junghwan; Kiryukhin, V.; Cheong, S.W.; Mostovoy, M.; Je Geun Park
Publication Date
2013-08
Journal
PHYSICAL REVIEW B, v.88, no.6, pp.60103 -
Publisher
AMER PHYSICAL SOC
Abstract
How magnetoelectric coupling actually occurs on a microscopic level in multiferroic BiFeO3 is not well known. By using high-resolution single crystal neutron diffraction techniques, we have determined the electric polarization of each individual element of BiFeO3, and concluded that magnetostrictive coupling suppresses the electric polarization at the Fe site below TN. This negative magnetoelectric coupling appears to outweigh the spin current contributions arising from the cycloid spin structure, which should produce positive magnetoelectric coupling. ©2013 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/1279
ISSN
2469-9950
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
Files in This Item:
2013-08-21-Physical Review B-Negative magnetostrictive.pdfDownload

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