Proton glass Cs5H3(SO4)(4)center dot xH(2)O: Relaxation dynamics

被引：4
|
作者：
Baranov, AI [1 ]
Shuvalov, LA [1 ]
Yakushkin, ED [1 ]
Synitsyn, VV [1 ]
机构：
[1] RUSSIAN ACAD SCI,INST SOLID STATE PHYS,CHERNOGOLOVKA 142432,RUSSIA
来源：
FERROELECTRICS | 1997年 / 199卷 / 1-4期
关键词：
glass transitions; proton disorder; relaxation;
D O I：
10.1080/00150199708213452
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Dielectric, ultrasonic, calorimetric and dilatometric measurements were carried out in the CS5H3(SO4)4.XH2O Single crystals. Two different relaxation mechanisms in the frequency range 10(-2)-10(7) Hz were found. The low-frequency relaxation is of the Kohlraush form and exhibits typical glass like behavior, while high-frequency one is described by an integral of a Debye relaxator over Gaussian distribution of relaxation times. The general nature of the acoustic and high-frequency dielectric relaxation is shown. The relation between stretched exponential and anomalous behavior of the thermal dilatation and heat capacity is discussed.
引用
收藏
页码：307 / 316
页数：10
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