Magnetic structure of Dy3+ in hexagonal multiferroic DyMnO3

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2008-08-22
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Kreyssig, Andreas
Vannette, Matthew
Lang, J.
Tan, L.
Kim, J. W.
Prozorov, Ruslan
Lograsso, Thomas
McQueeney, Robert
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Lograsso, Thomas
Ames Laboratory Division Director
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Goldman, Alan
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Ames National Laboratory
Abstract

Element specific x-ray resonant magnetic scattering (XRMS) investigations were undertaken to determine the magnetic structure of the multiferroic compound, hexagonal DyMnO3. In the temperature range from 68 K down to 8 K the Dy3+ moments are aligned and antiferromagnetically correlated in the c direction according to the magnetic representation Γ3. The temperature dependence of the observed intensity can be modeled assuming the splitting of ground-state doublet crystal-field levels of Dy3+ by the exchange field of Mn3+. XRMS together with magnetization measurements indicate that the magnetic representation is Γ2 below 8 K.

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This article is from Physical Review B 78 (2008): 075118, doi:10.1103/PhysRevB.78.075118.

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Tue Jan 01 00:00:00 UTC 2008
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