Negative magnetostrictive magnetoelectric coupling of BiFeO3

Sanghyun Lee, M. T. Fernandez-Diaz, H. Kimura, Y. Noda, D. T. Adroja, Seongsu Lee, Junghwan Park, Valery Kiryukhin, Sang-Wook Cheong, M. Mostovoy, Je Geun Park

Research output: Contribution to journalArticle

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

Original languageEnglish (US)
Article number060103
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume88
Issue number6
DOIs
StatePublished - Aug 21 2013

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Polarization
Neutron diffraction
cycloids
Single crystals
polarization
neutron diffraction
high resolution
single crystals

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Lee, S., Fernandez-Diaz, M. T., Kimura, H., Noda, Y., Adroja, D. T., Lee, S., ... Park, J. G. (2013). Negative magnetostrictive magnetoelectric coupling of BiFeO3. Physical Review B - Condensed Matter and Materials Physics, 88(6), [060103]. https://doi.org/10.1103/PhysRevB.88.060103
Lee, Sanghyun ; Fernandez-Diaz, M. T. ; Kimura, H. ; Noda, Y. ; Adroja, D. T. ; Lee, Seongsu ; Park, Junghwan ; Kiryukhin, Valery ; Cheong, Sang-Wook ; Mostovoy, M. ; Park, Je Geun. / Negative magnetostrictive magnetoelectric coupling of BiFeO3. In: Physical Review B - Condensed Matter and Materials Physics. 2013 ; Vol. 88, No. 6.
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Lee, S, Fernandez-Diaz, MT, Kimura, H, Noda, Y, Adroja, DT, Lee, S, Park, J, Kiryukhin, V, Cheong, S-W, Mostovoy, M & Park, JG 2013, 'Negative magnetostrictive magnetoelectric coupling of BiFeO3', Physical Review B - Condensed Matter and Materials Physics, vol. 88, no. 6, 060103. https://doi.org/10.1103/PhysRevB.88.060103

Negative magnetostrictive magnetoelectric coupling of BiFeO3. / Lee, Sanghyun; Fernandez-Diaz, M. T.; Kimura, H.; Noda, Y.; Adroja, D. T.; Lee, Seongsu; Park, Junghwan; Kiryukhin, Valery; Cheong, Sang-Wook; Mostovoy, M.; Park, Je Geun.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 88, No. 6, 060103, 21.08.2013.

Research output: Contribution to journalArticle

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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, Valery

AU - Cheong, Sang-Wook

AU - Mostovoy, M.

AU - Park, Je Geun

PY - 2013/8/21

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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.

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