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dc.contributor.authorLawes, G.
dc.contributor.authorHarris, A.B.
dc.contributor.authorKimura, T.
dc.contributor.authorRogado, N.
dc.contributor.authorCava, R.J.
dc.contributor.authorAharony, A.
dc.contributor.authorEntin-Wohlman, O.
dc.contributor.authorYildirim, T.
dc.contributor.authorKenzelmann, M.
dc.contributor.authorBroholm, C.
dc.contributor.authorRamirez, A.P.
dc.date.accessioned2010-01-11T18:54:46Z
dc.date.available2010-01-11T18:54:46Z
dc.date.issued2005-08-19
dc.identifier.citationPhysical Review Letters 19 Aug. 2005, vol.95, no.8, pp. 087205/1-en_US
dc.identifier.urihttp://jhir.library.jhu.edu/handle/1774.2/33767
dc.description.abstractWe 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_US
dc.language.isoen_USen_US
dc.publisherAmerican Physical Societyen_US
dc.subjectLandau theoryen_US
dc.subjectspin structureen_US
dc.subjectspatial inversion symmetryen_US
dc.subjectmagnetic-field dependenceen_US
dc.subjecttemperature dependenceen_US
dc.subjectsingle phase transitionen_US
dc.subjectincommensurate magnetic orderen_US
dc.subjectlong-range ferroelectric orderen_US
dc.subjectphenomenological theoren_US
dc.subjectmagnetic order parameteren_US
dc.subjectmagnetic transitionsen_US
dc.subjectdielectric polarizationen_US
dc.subjectferroelectric materialsen_US
dc.subjectcommensurate-incommensurate transformationsen_US
dc.subjectNi3V2O8en_US
dc.titleMagnetically driven ferroelectric order in Ni3V2O8en_US
dc.typeArticleen_US


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