Optical Absorption in Pure SrTiO3 and Nb Doped SrTiO3

被引：1
作者：
Tsuda, H. [1 ]
Kuraoka, M. [1 ]
Matsumoto, D. [1 ]
机构：
[1] Kyushu Univ, Fukuoka 8128581, Japan
来源：
FERROELECTRICS | 2011年 / 411卷
关键词：
Infrared spectroscopy; metal-insulator transition; mid-infrared absorption; SrTiO3; FERROELECTRIC BARIUM-TITANATE; DOMAIN; CRYSTALS;
D O I：
10.1080/00150193.2010.493080
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
SrTiO3 (STO) is of considerable interest because of very strong electron-phonon coupling. We measure the property electron-phonon coupling in order to elucidate the origin of the ferroelectricity from electronic structure. We measured the mid-infrared optical absorption of pure STO and Nb doped STO in order to investigate this electron-phonon coupling and multi-phonon. The mid-infrared absorption measurements were made over a wavenumber range from 400 to 7800 cm(-1), and over a temperature range from 30 to 150(30 . 40 . 50 ... 150). The Nb doped STO shows the broad infrared absorption peak near 2000 cm(-1).
引用
收藏
页码：58 / 61
页数：4
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