COMPOSITION DEPENDENCE OF THE FERROELECTRIC-PARAELECTRIC TRANSITION IN THE MIXED SYSTEM PBZR1-XTIXO3

被引:30
|
作者
NOHEDA, B [1 ]
CERECEDA, N [1 ]
IGLESIAS, T [1 ]
LIFANTE, G [1 ]
GONZALO, JA [1 ]
CHEN, HT [1 ]
WANG, YL [1 ]
机构
[1] CHINESE ACAD SCI,SHANGHAI INST CERAM,SHANGHAI 200050,PEOPLES R CHINA
来源
PHYSICAL REVIEW B | 1995年 / 51卷 / 22期
关键词
D O I
10.1103/PhysRevB.51.16388
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The dielectric constant and losses of good quality ceramic samples of Nb-doped (1 wt % Nb2O5) PbZr1-xTixO3 about the ferroelectric-paraelectric transition for 0.03≤x≤0.09 have been measured with the aim of investigating the behavior of the thermal hysteresis with composition and the possible existence of tricritical points in this mixed system. The trend of the data, analyzed in terms of a generalized effective-field theory (Eeff=E+βP+γP3+...) indicates that two tricritical points, at x0.26 and x0.51, are implied by the observed behavior at lower x. © 1995 The American Physical Society.
引用
收藏
页码:16388 / 16391
页数:4
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