Zone center wavenumbers of the orthorhombic LaGaO3 perovskite

被引：0
|
作者：
Rani, N
Gohel, VB
Gupta, HC
机构：
[1] Indian Inst Technol, Dept Phys, New Delhi 110016, India
[2] Gujarat Univ, Dept Phys, Ahmadabad 380009, Gujarat, India
[3] Maitreyi Coll, Dept Phys, New Delhi 110021, India
来源：
JOURNAL OF RAMAN SPECTROSCOPY | 2000年 / 31卷 / 10期
关键词：
D O I：
10.1002/1097-4555(200010)31:10<877::AID-JRS587>3.0.CO;2-F
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
A short-range force constant model was applied for the first time to investigate the phonons in LaGaO3 perovskite in the orthorhombic phase. The calculations with 10 stretching and 10 bending force constants provide good agreement for the observed Raman and infrared wavenumbers, The infrared wavenumbers at 329, 308, 296 and 165 cm(-1) were assigned to the B-1u mode and those at 510, 416, 353 and 275 cm(-1) to the B-3u mode. Copyright (C) 2000 John Wiley & Sons, Ltd.
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页码：877 / 880
页数：4
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