Incompatible Magnetic Order in Multiferroic Hexagonal DyMnO3

C. Wehrenfennig; D. Meier; Th. Lottermoser; Th. Lonkai; J. -U. Hoffmann; N. Aliouane; D. N. Argyriou; M. Fiebig

doi:10.1103/PhysRevB.82.100414

Incompatible Magnetic Order in Multiferroic Hexagonal DyMnO3

Strongly Correlated Electrons 2012-08-08 v1

Authors: C. Wehrenfennig , D. Meier , Th. Lottermoser , Th. Lonkai , J. -U. Hoffmann , N. Aliouane , D. N. Argyriou , M. Fiebig

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Abstract

Magnetic order of the manganese and rare-earth lattices according to different symmetry representations is observed in multiferroic hexagonal (h-) DyMnO $_3$ by optical second harmonic generation and neutron diffraction. The incompatibility reveals that the 3d-4f coupling in the h- $R$ MnO $_3$ system ( $R$ = Sc, Y, In, Dy - Lu) is substantially less developed than commonly expected. As a consequence, magnetoelectric coupling effects in this type of split-order parameter multiferroic that were previously assigned to a pronounced 3d-4f coupling have now to be scrutinized with respect to their origin.

Keywords

multiferroic charge ordering frustrated magnetism

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@article{arxiv.1005.1152,
  title  = {Incompatible Magnetic Order in Multiferroic Hexagonal DyMnO3},
  author = {C. Wehrenfennig and D. Meier and Th. Lottermoser and Th. Lonkai and J. -U. Hoffmann and N. Aliouane and D. N. Argyriou and M. Fiebig},
  journal= {arXiv preprint arXiv:1005.1152},
  year   = {2012}
}

Incompatible Magnetic Order in Multiferroic Hexagonal DyMnO3

Abstract

Keywords

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