Journal
JOURNAL OF APPLIED PHYSICS
Volume 104, Issue 3, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2964088
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Funding
- National Nature Science Foundation of China [50672075]
- RFDP [20050699011]
- MOE [111 project B08040]
- Aeronautic Science Foundation of China [2006ZF53068]
- Research Grants Council of the Hong Kong Special Administrative Region, China [PolyU5166/05E]
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The temperature dependence of dielectric permittivity was investigated for the barium zirconium titanate solid solution system [BZT, Ba(ZrxTi1-x)O-3 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)O-3, 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. (c) 2008 American Institute of Physics.
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