ACOUSTICAL PROPERTIES OF DISORDERED FERROELECTRICS

被引：76
|
作者：
DOROGOVTSEV, SN
YUSHIN, NK
机构：
[1] Ioffe Physico-Technical Institute, Academy of Sciences of the USSR, Leningrad, 194021, USSR
来源：
FERROELECTRICS | 1990年 / 112卷
关键词：
DIFFUSE PHASE TRANSITION; ACOUSTICS; RELAXATORS; ELECTROSTRICTION;
D O I：
10.1080/00150199008012783
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A short review of acoustic properties of a number of disordered ferroelectric materials is made. In the first place such characteristics as velocity of ultrasound elastic waves and their attenuation in a phase transition range are discussed. We show that rather wide class of compounds (relaxators) can be identified as correlated (cluster) polar glasses. Experimental data for such materials are interpreted naturally while suggesting strong critical fluctuations and an extremely wide spectrum of relaxation times. © 1990, Taylor & Francis Group, LLC. All rights reserved.
引用
收藏
页码：27 / 44
页数：18
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