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

页码：415 / 426

页数：12

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