Microscopic region effect on the dielectric property of the diffused phase transition ferroelectrics: A reasonable and effective diffuseness characterizing parameter

Chaoliang Mao, Xianlin Dong, Genshui Wang, Sheng Cao, Chunhua Yao, Kenji Uchino

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13 Scopus citations

Abstract

Based on the microscopic composition fluctuation model and phenomenological theory, a reasonable and effective characterizing parameter of the diffuseness degree of the diffused phase transition (DPT) was defined. The parameter equals to the temperature interval of T∂ε(T)∂Tmin= T∂ε(T)∂Tmax and which correspond to the temperatures when ∂(T)∂T reaches when the minimum and maximum, respectively. The parameter reflects the diffuseness degree macroscopically and can be easily calculated. This characterizing parameter has been proved to be useful for ferroelectric materials including normal ferroelectrics, common DPT ferroelectrics, and typical relaxor ferroelectrics.

Original languageEnglish (US)
Pages (from-to)4011-4014
Number of pages4
JournalJournal of the American Ceramic Society
Volume93
Issue number12
DOIs
StatePublished - Dec 1 2010

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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