Magnetically driven ferroelectric order in Ni3V2O8

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dc.contributor.author Lawes, G.
dc.contributor.author Harris, A.B.
dc.contributor.author Kimura, T.
dc.contributor.author Rogado, N.
dc.contributor.author Cava, R.J.
dc.contributor.author Aharony, A.
dc.contributor.author Entin-Wohlman, O.
dc.contributor.author Yildirim, T.
dc.contributor.author Kenzelmann, M.
dc.contributor.author Broholm, C.
dc.contributor.author Ramirez, A.P.
dc.date.accessioned 2010-01-11T18:54:46Z
dc.date.available 2010-01-11T18:54:46Z
dc.date.issued 2005-08-19
dc.identifier.citation Physical Review Letters 19 Aug. 2005, vol.95, no.8, pp. 087205/1- en
dc.identifier.uri http://jhir.library.jhu.edu/handle/1774.2/33767
dc.description.abstract We show that long-range ferroelectric and incommensurate magnetic order appear simultaneously in a single phase transition in Ni3V2O8. The temperature and magnetic-field dependence of the spontaneous polarization show a strong coupling between magnetic and ferroelectric orders. We determine the magnetic symmetry using Landau theory for continuous phase transitions, which shows that the spin structure alone can break spatial inversion symmetry leading to ferroelectric order. This phenomenological theory explains our experimental observation that the spontaneous polarization is restricted to lie along the crystal b axis and predicts that the magnitude should be proportional to a magnetic order parameter. en
dc.description.provenance Submitted by Susan Vazakas (svazakas@jhu.edu) on 2010-01-06T20:39:34Z No. of bitstreams: 1 Broholm Magnetically 2005.pdf: 349287 bytes, checksum: f3bd196e1323b622d322a4ada61f423a (MD5) en
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dc.description.provenance Made available in DSpace on 2010-01-11T18:54:46Z (GMT). No. of bitstreams: 1 Broholm Magnetically 2005.pdf: 349287 bytes, checksum: f3bd196e1323b622d322a4ada61f423a (MD5) Previous issue date: 2005-08-19 en
dc.language.iso en_US en
dc.publisher American Physical Society en
dc.subject Landau theory en
dc.subject spin structure en
dc.subject spatial inversion symmetry en
dc.subject magnetic-field dependence en
dc.subject temperature dependence en
dc.subject single phase transition en
dc.subject incommensurate magnetic order en
dc.subject long-range ferroelectric order en
dc.subject phenomenological theor en
dc.subject magnetic order parameter en
dc.subject magnetic transitions en
dc.subject dielectric polarization en
dc.subject ferroelectric materials en
dc.subject commensurate-incommensurate transformations en
dc.subject Ni3V2O8 en
dc.title Magnetically driven ferroelectric order in Ni3V2O8 en
dc.type Article en

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