Surface Effects on Dielectric Susceptibility of a Semi-infinite
Ferroelectric
QU Baodong, WANG Chunlei, ZHONG Weilie, WANG Zhonglie
Department of physics, Shandong University, Jinan 250100
Surface Effects on Dielectric Susceptibility of a Semi-infinite
Ferroelectric
QU Baodong;WANG Chunlei;ZHONG Weilie;WANG Zhonglie
Department of physics, Shandong University, Jinan 250100
关键词 ：
77.80.-e ,
65.40.-f
Abstract ： The profile of susceptibility near the surface of a semi-infinite ferroelectric is calculated from Landau free energy. In surface ferroelectric phase, the susceptibility is reduced at surface for |δ| <<β and much enhanced for |δ| ~β Where δ and β are the extrapolation length and the coherent length respectively. In ferroelectric phase, the surface susceptibility is generally reduced for δ<0. But the curve is not monotonic, there is a minimum in the surface layer. For δ >0, the surface susceptibility is reduced for |δ| <<β and enhanced for δ~β. The curve has a maximum in the surface layer.
Key words ：
77.80.-e
65.40.-f
出版日期: 1993-09-01
引用本文:
QU Baodong;WANG Chunlei;ZHONG Weilie;WANG Zhonglie. Surface Effects on Dielectric Susceptibility of a Semi-infinite
Ferroelectric
[J]. 中国物理快报, 1993, 10(9): 558-561.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1993/V10/I9/558
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1993, Vol. 10 
