SIZE EFFECT ON THE DIELECTRIC SUSCEPTIBILITY OF FERROELECTRICS

被引：2
|
作者：
Wang, C. L. [1 ]
Smith, S. R. P. [1 ]
Tilley, D. R. [1 ]
机构：
[1] Univ Essex, Dept Phys, Colchester CO4 3SQ, Essex, England
来源：
FERROELECTRICS | 1996年 / 186卷
关键词：
D O I：
10.1080/00150199608218026
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Using Landau theory, the influence of size on the dielectric behaviour of ferroelectric films, cylinders and spheres has been investigated. For cylinders and spheres, a size-driven phase transition occurs and the dielectric susceptibility is always enhanced at small size. However for films, whether there is a size-phase transition depends on the surface ferroelectricity. Our calculations are in qualitative agreement with measurements on barium titanate and lead titanate.
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收藏
页码：33 / 36
页数：4
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