Phys Rev Lett. 2009 May 22;102(20):207205. Epub 2009 May 20.

Flop of electric polarization driven by the flop of the Mn spin cycloid in multiferroic TbMnO3.

Aliouane N, Schmalzl K, Senff D, Maljuk A, Prokes K, Braden M, Argyriou DN.

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Helmholtz-Zentrum Berlin für Materialen und Energy, D-14109 Berlin, Germany.

Abstract

Using in-field single-crystal neutron diffraction, we have determined the magnetic structure of TbMnO(3) in the high field P parallel a phase. We unambiguously establish that the ferroelectric polarization arises from a cycloidal Mn spin ordering, with spins rotating in the ab plane. Our results demonstrate directly that the flop of the ferroelectric polarization in TbMnO(3) with applied magnetic field is caused from the flop of the Mn cycloidal plane.

PMID:: 19519070; [PubMed]

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Flop of electric polarization driven by the flop of the Mn spin cycloid in multi...
Flop of electric polarization driven by the flop of the Mn spin cycloid in multiferroic TbMnO3.
Phys Rev Lett. 2009 May 22 ;102(20):207205. Epub 2009 May 20 .

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Flop of electric polarization driven by the flop of the Mn spin cycloid in multiferroic TbMnO3.

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