Measurement of Landau coefficients in ferroelectrics using nonlinear dielectric spectroscopy

被引：9

作者：

Palto, SP ^{[1
]}

Andreev, GN ^{[1
]}

Petukhova, NN ^{[1
]}

Yudin, SG ^{[1
]}

Blinov, LM ^{[1
]}

机构：

[1] Russian Acad Sci, AV Shubnikov Crystallog Inst, Moscow 117333, Russia

来源：

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2000年 / 90卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/1.559174

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A method of measuring the phenomenological Landau-Ginzburg coefficients in an expansion of the free energy of ferroelectrics near the phase transition is proposed. This method is based on simultaneously recording five Fourier components of the current response to a sinusoidal voltage as a function of temperature. An analysis is made of a specific application of the method to Langmuir-Blodgett ultrathin ferroelectric films. (C) 2000 MAIK "Nauka/Interperiodica".

引用

页码：872 / 880

页数：9

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