Effect of zero-point energy on the dielectric behavior of strontium titanate

被引：14
|
作者：
Yuan, M
Wang, CL
Wang, YX
Ali, R
Zhang, JL
机构：
[1] Shandong Univ, Sch Phys & Microelect, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
[2] PLA Jinan Army Acad, Dept Phys, Jinan 250029, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2003年 / 127卷 / 06期
关键词：
ferroelectrics; dielectric response; phase transitions;
D O I：
10.1016/S0038-1098(03)00460-5
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Barrett formula has been obtained in the framework of the effective field approach by including the zero-point energy. By fitting with experimental data of dielectric constant of SrTiO3, we find that they agree in the whole temperature range fairly well if the zero-point energy is assumed to change from a small value at low temperature to a large value at high temperature. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码：419 / 421
页数：3
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