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Dynamic Hysteresis Scaling in BaTiO_3 Bulk Ceramics

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  • Trans Tech Publications Ltd
The scaling behavior of the dynamic hysteresis of ferroelectric BaTiO_3 bulk ceramics was investigated. Two sets of the scaling relation of hysteresis area <A> against frequency f and field amplitude E_0 were clearly established. Approximately, above the coercive field, the scaling took a form of <A> ∝ f~(-0.23) E_0~(0.87). On the other hand, the scaling in the form of <A> ∝ f~(-0.36)E_0~(3.64) was obtained under a sub-coercive field condition. While these scaling relations were generally comparable to previously reported ones, it was found that the f- and E_0 exponents clearly depended on E_0 and f, respectively.

scalinghysteresisBaTiO_3

Natthapong Wongdamnern、Athipong Ngamjarurojana、Supon Ananta、Yongyut Laosiritawom、Rattikorn Yimnirun

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Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand

School of Physics, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000 Thailand

2010

10.4028/www.scientific.net/KEM.421-422.399

Key engineering materials

Key engineering materials

ISSN：1013-9826
年,卷(期)：2010.421/422
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