A new ferroelectric compound:: PbK2LiNb5O15

被引：16
|
作者：
Gagou, Y
Mezzane, D
Aliouane, N
Badeche, T
Elaatmani, M
Pischedda, MH
Saint-Gregoire, R
机构：
[1] UTV, F-83957 La Garde, France
[2] Univ Cadi Ayyad, FSTG, Marrakech, Morocco
来源：
FERROELECTRICS | 2001年 / 254卷 / 1-4期
关键词：
phase transition; ferroelectric; loss factor; conductivity; dielectric permittivity;
D O I：
10.1080/00150190108215000
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present dielectric studies carried out on PbK2LiNb5O15 exhibiting its ferroelectric behaviour: the rea art of dielectric constant follows a Curie law, with T-c approximate to 639 K and a Curie constant 1.5x10(5) K. The structural change involves a first order phase transition evidenced by a thermal hysteresis and a epsilon(r)' discontinuity, and also an intermediate phase. An ionic conductivity, probably related with the Li+ ion mobility, is also evidenced.
引用
收藏
页码：197 / 204
页数：8
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