Temperature dependence of low-frequency optical phonons in TlInS2

被引：6
|
作者：
Paucar, Raul [1 ]
Shim, YongGu [2 ]
Wakita, Kazuki [1 ]
Alekperov, Oktay [3 ]
Mamedov, Nazim [3 ]
机构：
[1] Chiba Inst Technol, Elect & Comp Engn, Chiba, Japan
[2] Osaka Prefecture Univ, Grad Sch Engn, Osaka, Japan
[3] Azerbaijan Natl Acad Sci, Inst Phys, Baku, Azerbaijan
来源：
PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 12, NO 6 | 2015年 / 12卷 / 06期
关键词：
Raman scattering; ternary thallium dichalcogenide; phase transition; RAMAN; TLGASE2; MODES; POLYTYPES; SPECTRA;
D O I：
10.1002/pssc.201400350
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The unpolarized Stocks component of the Raman spectra of the layered ternary thallium dichalcogenide, TlInS2 was studied with the aid of a Raman confocal microscope system in the low-frequency region of 35-150 cm(-1) over the temperature range that embraced the region of the successive phase transitions in this crystal. The observed spectra were deconvoluted into Lorentzian peaks to single-out the contribution of each Raman mode. The temperature dependence of the Raman frequency and broadening associated with each mode was then obtained. The irregular temperature behaviour of most modes was disclosed in the proximity of phase transitions. (C) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：826 / 829
页数：4
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