Raman scattering investigations on the PBN phase diagram

被引：2
|
作者：
Ayala, AP
Bento, ICV
Melo, FEA
Garcia, D
Eiras, JA
机构：
[1] Univ Fed Sao Carlos, Dept Fis, BR-1356590 Sao Carlos, SP, Brazil
[2] Univ Fed Ceara, Dept Fis, BR-60455760 Fortaleza, Ceara, Brazil
来源：
FERROELECTRICS | 2004年 / 303卷
基金：
巴西圣保罗研究基金会;
关键词：
lead-barium-niobate; Raman spectroscopy; tungsten-bronze;
D O I：
10.1080/00150190490453946
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Raman spectra of the tungsten-bronze oxygen octahedra ferroelectric lead barium niobate were recorded between 300 and 700 K The investigated sample, with 60% of lead, shows a ferro-paraelectric phase transition in this temperature range. Clear evidence of the structural transformation was observed in the low-lying vibrational modes.
引用
收藏
页码：189 / 193
页数：5
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