Broad-band dielectric spectroscopy of tetragonal PLZT x/40/60

被引：12
作者：
Buixaderas, E. [1 ]
Nuzhnyy, D.
Veljko, S.
Savinov, M.
Vanek, P.
Kamba, S.
Petzelt, J.
Kosec, M.
机构：
[1] Acad Sci Czech Republ, Inst Phys, Prague, Czech Republic
[2] Univ Ljubljana, Jozef Stefan Inst, Ljubljana 61000, Slovenia
来源：
PHASE TRANSITIONS | 2006年 / 79卷 / 6-7期
关键词：
ferroelectrics; relaxors; dielectric behaviour; lattice dynamics dielectric spectroscopy; IR spectroscopy; THz spectroscopy;
D O I：
10.1080/01411590600892179
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The dielectric behaviour of tetragonal PLZT x/40/60 ceramics doped with lanthanum (x = 5, 12 and 15%) has been investigated at 100 - 10(14) Hz. Dielectric, THz and infrared spectra were measured from 500 to 20 K. For x >= 12 relaxor ferroelectric behaviour was observed. All three samples showed an additional relaxational mode below phonons. Analysis of the phonon modes for ferroelectric PLZT 5/40/60 is presented together with the complete dielectric behaviour.
引用
收藏
页码：415 / 426
页数：12
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