Negative magnetostrictive magnetoelectric coupling of BiFeO3

Sanghyun Lee; M. T. Fernandez-Diaz; H. Kimura; Y. Noda; D. T. Adroja; Seongsu Lee; Junghwan Park; V. Kiryukhin; S. W. Cheong; M. Mostovoy; Je Geun Park

doi:10.1103/PhysRevB.88.060103

Negative magnetostrictive magnetoelectric coupling of BiFeO³

Sanghyun Lee, M. T. Fernandez-Diaz, H. Kimura, Y. Noda, D. T. Adroja, Seongsu Lee, Junghwan Park, V. Kiryukhin, S. W. Cheong, M. Mostovoy, Je Geun Park

Research output: Contribution to journal › Article › peer-review

61 Citations (Scopus)

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 T_N. This negative magnetoelectric coupling appears to outweigh the spin current contributions arising from the cycloid spin structure, which should produce positive magnetoelectric coupling.

Original language	English
Article number	060103
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	88
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevB.88.060103
Publication status	Published - 21 Aug 2013
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.88.060103

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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.",

author = "Sanghyun Lee and Fernandez-Diaz, {M. T.} and H. Kimura and Y. Noda and Adroja, {D. T.} and Seongsu Lee and Junghwan Park and V. Kiryukhin and Cheong, {S. W.} and M. Mostovoy and Park, {Je Geun}",

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doi = "10.1103/PhysRevB.88.060103",

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AU - Lee, Sanghyun

AU - Fernandez-Diaz, M. T.

AU - Kimura, H.

AU - Noda, Y.

AU - Adroja, D. T.

AU - Lee, Seongsu

AU - Park, Junghwan

AU - Kiryukhin, V.

AU - Cheong, S. W.

AU - Mostovoy, M.

AU - Park, Je Geun

PY - 2013/8/21

Y1 - 2013/8/21

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84883396253&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.88.060103

DO - 10.1103/PhysRevB.88.060103

M3 - Article

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VL - 88

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 6

M1 - 060103

ER -

Negative magnetostrictive magnetoelectric coupling of BiFeO³

Abstract

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