Magnetic inversion symmetry breaking and ferroelectricity in TbMnO3

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dc.contributor.author Kenzelmann, M.
dc.contributor.author Harris, A.B.
dc.contributor.author Jonas, S.
dc.contributor.author Broholm, C.
dc.contributor.author Schefer, J.
dc.contributor.author Kim, S.B.
dc.contributor.author Zhang, C.L.
dc.contributor.author Cheong, S.-W.
dc.contributor.author Vajk, O.P.
dc.contributor.author Lynn, J.W.
dc.date.accessioned 2010-01-07T21:11:31Z
dc.date.available 2010-01-07T21:11:31Z
dc.date.issued 2005-08-19
dc.identifier.citation Physical Review Letters 19 Aug. 2005, vol.95, no.8, pp. 087206/1-4 en
dc.identifier.uri http://jhir.library.jhu.edu/handle/1774.2/33757
dc.description.abstract TbMnO3 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
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dc.description.provenance Made available in DSpace on 2010-01-07T21:11:31Z (GMT). No. of bitstreams: 1 Broholm Magnetic inversion 2005.pdf: 304373 bytes, checksum: 816ae17b1f6754b6e800baa5cad04582 (MD5) Previous issue date: 2005-08-19 en
dc.language.iso en_US en
dc.publisher American Physical Society en
dc.subject ferroelectric order en
dc.subject incommensurate spin order en
dc.subject orthorhombic insulator en
dc.subject spin structure en
dc.subject transverse incommensurate spiral en
dc.subject terbium compounds en
dc.subject neutron diffraction en
dc.subject ferroelectric transitions en
dc.subject antiferromagnetic materials en
dc.subject spatial inversion symmetry breaking en
dc.subject magnetoelectricity en
dc.subject TbMnO3 en
dc.title Magnetic inversion symmetry breaking and ferroelectricity in TbMnO3 en
dc.type Article en

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