Correlations between Curie temperature, relaxation frequency and chemical bonding in relaxor ferroelectric materials

被引：17

作者：

Elissalde, C

Villesuzanne, A

Ravez, J

Pouchard, M

机构：

[1] ICMCB, CNRS, 33608 Pessac, Avenue du Dr. A. Schweitzer

来源：

FERROELECTRICS | 1997年 / 199卷 / 1-4期

关键词：

relaxor ferroelectrics; phase transition; relaxation; chemical bonding;

D O I：

10.1080/00150199708213435

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Correlations between Curie temperature, relaxation frequency and chemical bonding have been evidenced in ABO(3) type ferroelectric perovskites. This approach is extended to Pb(B,B')O-3 type relaxer ferroelectric materials for which a high frequency relaxation has been recently observed. A study of relaxation frequency-chemical bonding relations using Extended Huckel theory is proposed. The influence of the covalency of oxygen-cation (B, B') bond on the relaxation frequency in Pb(In1/2Nb1/2)O-3, Pb(Sc1/2Nb1/2)O-3, Pb(Sc1/2Ta1/2)O-3 is shown.

引用

页码：131 / 142

页数：12

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