Peculiarities of terahertz spectra of layered TlInS2 crystals

被引:0
|
作者
Sardarly, R. M. [1 ]
Badalov, A. Z. [2 ]
Abdullaev, A. P. [1 ]
Vezirova, T. N. [2 ]
Garet, F. [3 ]
Coutaz, J. -L. [3 ]
Oruzhova, A. A. [1 ]
机构
[1] Azerbaijan Natl Acad Sci, Inst Radiat Problems, AZ-1143 Baku, Azerbaijan
[2] Natl Acad Aviat, AZ-1045 Baku, Azerbaijan
[3] Univ Savoie, IMEP LAHC, UMR CNRS 5130, F-73376 Le Bourget Du Lac, France
关键词
TLGASE2;
D O I
10.1134/S1063783416010285
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Vibrational spectra of TlInS2 crystals in the terahertz frequency range (0.1-3 THz) have been obtained and analyzed. The observed low-frequency band is attributed to the libration oscillations of nanolayers (so-called boson peak). A correlation between the coherent low-frequency oscillation and a disordered character of the crystal structure is shown. A conclusion is made on the presence of a topological disorder that manifests itself on the layered subsystem level.
引用
收藏
页码:25 / 29
页数:5
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