Incompatible Magnetic Order in Multiferroic Hexagonal DyMnO3

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.

References in corpus (5)

• The beta Phase of Multiferroic Bismuth Ferrite and its beta-gamma Metal-Insulator Transition
• Phase transitions and rare-earth magnetism in hexagonal and orthorhombic DyMnO${}_3$ single crystals
• The nature of Ho magnetism in multiferroic HoMnO3
• Theory of magnetic phases of hexagonal rare earth manganites
• Spin-Coupled Local Distortions in Multiferroic Hexagonal HoMnO3

Cited by in corpus (5)

• Mutual induction of magnetic 3d and 4f order in multiferroic hexagonal ErMnO3
• Unusual rotating magnetocaloric effect in the hexagonal ErMnO3 single crystal
• Classification of second harmonic generation effect in magnetically ordered materials
• Independent ferroelectric contributions and rare-earth-induced polarization reversal in multiferroic TbMn2O5
• Magnetic Order of the Hexagonal Rare Earth Manganite Dy(0.5)Y(0.5)MnO3