Effect of hydrostatic pressure on the dielectric response of Pb(Mg1/3Nb2/3)O3 relaxor

被引：9
|
作者：
Nawrocik, W
Czarnecki, P
Hilczer, A
Blinc, R
机构：
[1] Adam Mickiewicz Univ, Inst Phys, PL-61614 Poznan, Poland
[2] Jozef Stefan Inst, Ljubljana, Slovenia
来源：
PHASE TRANSITIONS | 2003年 / 76卷 / 07期
关键词：
relaxors; Pb(Mg1/3Nb2/3)O-3; dielectric response; hydrostatic pressure effect;
D O I：
10.1080/0141159031000065941
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The effect of hydrostatic pressure on the dielectric response of Pb(Mg1/3Nb2/3)O-3 relaxor single crystal was studied. An increase in the dispersion of the dielectric anomaly, characteristic of the relaxors, was observed: pressure-induced downward shift of the temperature T-m of permittivity maximum at I kHz amounts to dT(m)/dp= -3.8K/100MPa, whereas that measured at I MHz equals -3.3K/100MPa. Analysis of the dielectric response of the highly polarizable Pb(Mg1/3Nb2/3)O-3 shows that hydrostatic pressure results in a decrease of the correlation radius r(c) of polar nanodomains, as well as their activation energy.
引用
收藏
页码：693 / 699
页数：7
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