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

页码：58 / 61

页数：4

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