DYNAMIC PROPERTIES OF DIELECTRIC SUSCEPTIBILITY IN FERROELECTRIC THIN FILMS

被引：7

作者：

Cui, Lian ^{[1
]}

Cui, Haiying ^{[1
]}

Wu, Chunmei ^{[1
]}

Yang, Guihua ^{[1
]}

He, Zelong ^{[2
]}

Wang, Yuling ^{[1
]}

Che, Jixin ^{[3
]}

机构：

[1] Daqing Normal Univ, Sch Mechatron Engn, Daqing 163712, Peoples R China

[2] Heilongjiang Inst Technol, Sch Elect & Informat Engn, Harbin 150050, Peoples R China

[3] Air Force Aviat Univ, Ordnance Engn Dept, Changchun 130022, Peoples R China

来源：

SURFACE REVIEW AND LETTERS | 2016年 / 23卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Ferroelectric thin film; dielectric susceptibility; applied field; LANDAU-KHALATNIKOV THEORY; PHASE-TRANSITION; MODEL; SIMULATION; FIELD;

D O I：

10.1142/S0218625X16500104

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, frequency, temperature, film thickness, surface effects,and various parameters dependence of dielectric susceptibility is investigated theoretically for ferroelectric thin films by the modified Landau theory under an AC applied field. The dielectric susceptibility versus AC applied field shows butterfly-shaped behavior, and depends strongly on the frequency and amplitude of the field and temperature. Our study shows that the existence of the surface transition layer can depress the dielectric susceptibility of a ferroelectric thin film. These results are well consistent with the phenomena reported in experiments.

引用

页数：6

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