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dc.contributor.authorKenzelmann, M.
dc.contributor.authorHarris, A.B.
dc.contributor.authorJonas, S.
dc.contributor.authorBroholm, C.
dc.contributor.authorSchefer, J.
dc.contributor.authorKim, S.B.
dc.contributor.authorZhang, C.L.
dc.contributor.authorCheong, S.-W.
dc.contributor.authorVajk, O.P.
dc.contributor.authorLynn, J.W.
dc.date.accessioned2010-01-07T21:11:31Z
dc.date.available2010-01-07T21:11:31Z
dc.date.issued2005-08-19
dc.identifier.citationPhysical Review Letters 19 Aug. 2005, vol.95, no.8, pp. 087206/1-4en
dc.identifier.urihttp://jhir.library.jhu.edu/handle/1774.2/33757
dc.description.abstractTbMnO3 is an orthorhombic insulator where incommensurate spin order for temperature TN<41 K is accompanied by ferroelectric order for T<28 K. To understand this, we establish the magnetic structure above and below the ferroelectric transition using neutron diffraction. In the paraelectric phase, the spin structure is incommensurate and longitudinally modulated. In the ferroelectric phase, however, there is a transverse incommensurate spiral. We show that the spiral breaks spatial inversion symmetry and can account for magnetoelectricity in TbMnO3.en
dc.language.isoen_USen
dc.publisherAmerican Physical Societyen
dc.subjectferroelectric orderen
dc.subjectincommensurate spin orderen
dc.subjectorthorhombic insulatoren
dc.subjectspin structureen
dc.subjecttransverse incommensurate spiralen
dc.subjectterbium compoundsen
dc.subjectneutron diffractionen
dc.subjectferroelectric transitionsen
dc.subjectantiferromagnetic materialsen
dc.subjectspatial inversion symmetry breakingen
dc.subjectmagnetoelectricityen
dc.subjectTbMnO3en
dc.titleMagnetic inversion symmetry breaking and ferroelectricity in TbMnO3en
dc.typeArticleen


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