LOCAL AND QUASI-LOCAL MODES OF FE AND ZN IN CDTE

被引：20
作者：
LU, W
YE, HJ
YU, ZY
ZHANG, SY
FU, Y
XU, WL
SHEN, SC
GIRIAT, W
机构：
[1] Shanghai Inst of Technical Physics, China
来源：
PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1988年 / 147卷 / 02期
关键词：
Crystals - Lattice Vibrations - Phonons - Spectroscopy; Absorption; -; Spectroscopy; Infrared;
D O I：
10.1002/pssb.2221470238
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The far infrared absorption and reflection spectra of the mixed crystals Cd1-xFexTe and Cd1-x. ZnxTe with small x in the temperature range of 4.2 to 300 K and the wavenumber range of 20 to 350 cm-1 are reported. Local modes induced by Fe and Zn (196 and 173 cm-1), quasi-local modes induced by FeTe and ZnTe (56 and 54 cm-1) in CdTe and CdTe-like 2TA two-phonon absorption (72 cm-1) are observed and estimated by use of the Green's function method. The random-element-isodisplacement (REI) model is also used to calculate the two-mode-behaviors of the mixed crystals and to best fit the reflection spectra. Besides, the temperature dependences of the phonon absorptions are calculated and well explained.
引用
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页码：767 / 778
页数：12
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