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Dielectric dispersion behavior of Ba(ZrxTi1-x)O3 solid solutions with a quasiferroelectric state

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5 Author(s)
Ke, Shanming ; State Key Laboratory of Solidification Processing, School of Materials Science, Northwestern Polytechnical University, Xi’an 710072, People’s Republic of China and Department of Applied Physics and Materials Research Center, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, People’s Republic of China ; Fan, Huiqing ; Huang, Haitao ; Chan, Helen L.W.
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The temperature dependence of dielectric permittivity was investigated for the barium zirconium titanate solid solution system [BZT, Ba(ZrxTi1-x)O3 0.25≤x≤0.5]. The dielectric relaxation behavior was observed in these ferroelectrics with diffused phase transition. In contrast to the canonical relaxors such as Pb(Mg1/3Nb2/3)O3, the diffused phase transition of BZT could not be well described by the popular modified Curie–Weiss law. Quasiferroelectric state theory was introduced to explain the dielectric results of the BZT relaxors.

Published in:

Journal of Applied Physics  (Volume:104 ,  Issue: 3 )

Date of Publication:

Aug 2008

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