The influence of magnetic anisotropy on magne...

J. Appl. Phys. 107, 093908 (2010); doi:10.1063/1.3407541 (5 pages)
The influence of magnetic anisotropy on magnetoelectric behavior in conical spin ordered multiferroic state
Xiaoyan Yao1, Veng Cheong Lo2, and Jun-Ming Liu3
1Department of Physics, Southeast University, Nanjing 211189, Chinamap
2Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, Chinamap
3Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, Chinamap
(Received 27 January 2010; accepted 24 March 2010; published online 6 May 2010)

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Abstract
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For the magnetism-driven multiferroic materials, the magnetic anisotropy plays an essential role in the magnetoelectric behavior. To understand the influence of magnetic anisotropy on multiferroic state resulting from the conical spin order, we have performed Monte Carlo simulation on a three-dimensional classical Heisenberg model in spinel lattice. The single-ion anisotropy from the easy-axis type to the easy-plane type is considered in the system, and the corresponding magnetoelectric behavior is investigated under a rotating external magnetic field (h). It is revealed that the magnetic anisotropy drags the orientation of conical spin structure slightly away from the direction of h, and distorts the conical spin structure as well. The balance between h and the anisotropy results in the anisotropic magnetoelectric properties during the rotation of h.
© 2010 American Institute of Physics
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KEYWORDS and PACS
Keywords
Heisenberg model,magnetic anisotropy,magnetoelectric effects,Monte Carlo methods,multiferroics
PACS
75.85.+t
Magnetoelectric effects, multiferroics
75.10.Jm
Quantized spin models, including quantum spin frustration
75.30.Gw
Magnetic anisotropy
77.80.-e
Ferroelectricity and antiferroelectricity
ARTICLE DATA
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http://link.aip.org/link/JAPIAU/v107/i9/p093908/s1
PUBLICATION DATA
ISSN:
0021-8979 (print)
1089-7550 (online)
Publisher:
American Institute of Physics
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