Coexistence of magnetic and ferroelectric behaviors of pyrochlore Ho 2 Ti2 O7

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作者：
Dong, X.W. [1 ]
Wang, K.F. [1 ]
Luo, S.J. [1 ]
Wan, J.G. [1 ]
Liu, J.-M. [1 ,2 ,3 ]
机构：
[1] Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
[2] School of Physics, South China Normal University, Guangzhou 510006, China
[3] International Center for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, China
来源：
Journal of Applied Physics | 2009年 / 106卷 / 10期
关键词：
Rare-earth titanate cubic pyrochlore Ho2 Ti2 O 7 ceramics are prepared by the standard solid state reaction. The magnetic; dielectric; and ferroelectric behaviors are measured in order to investigate the multiferroic behaviors of Ho2 Ti2 O 7. Upon the gradual spin ordering sequence with decreasing temperature; a ferroelectric transition with a small polarization is identified. We discuss the origin of ferroelectricity and its possible correlation with the spin order at low temperature. © 2009 American Institute of Physics;
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