Low-Frequency Raman Spectroscopy in Pb(Zn1/3Nb2/3)O3-PbTiO3 Mixed Crystals

被引：3
作者：
Iwata, Makoto [1 ]
Hasegawa, Yusuke [1 ]
Aoyagi, Rintaro [1 ]
Maeda, Masaki [1 ]
Wakiya, Naoki [2 ]
Suzuki, Hisao [3 ]
Ishibashi, Yoshihiro [4 ]
机构：
[1] Nagoya Inst Technol, Grad Sch Engn, Dept Engn Phys Elect & Mech, Nagoya, Aichi 4668555, Japan
[2] Shizuoka Univ, Dept Mat Sci, Hamamatsu, Shizuoka 4328561, Japan
[3] Shizuoka Univ, Grad Sch Sci & Technol, Hamamatsu, Shizuoka 4328561, Japan
[4] Aichi Shukutoku Univ, Fac Business, Nagakute, Aichi 4801197, Japan
来源：
FERROELECTRICS | 2009年 / 378卷
关键词：
PZN; relaxor; polar nano-region; Raman scattering; soft mode ferroelectricity; phase transition; SINGLE-CRYSTALS; PHASE-TRANSITION; BEHAVIOR;
D O I：
10.1080/00150190902845160
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Raman spectra in (1-x)Pb(Zn1/3Nb2/3)O3 - xPbTiO3 (PZN-xPT) mixed crystals were measured under several optical geometries below 400 cm- 1. Raman modes in the low frequency region were assigned on the basis of our spectrum in the poled sample of PZN-20%PT. Low frequency Raman modes in PZN-PT (x 20%) were confirmed to be primarily caused by ferroelectric modes rather than 1:1 B-site ordering. It was found that the Raman scattering is sensitive for the inhomogeneous ferroelectric distortion or existence of the polar nano-region in the cubic phase of the PZN-type relaxor. Both the E(TO1) and A1(TO1) modes, corresponding to the soft modes in PbTiO3, do not almost depend on temperature near the ferroelectric phase transition point in PZN-PT (x 20%).
引用
收藏
页码：84 / 91
页数：8
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