Open AccessTemperature Dependence of Raman-Active Modes of TlIn(0.95Se0.05)2 Single Crystals
Author(s) -
О. О. Гомоннай,
Michael Ludemann,
A. V. Gomonnai,
I. Yu. Roman,
А. Г. Сливка,
Dietrich R. T. Zahn
Publication year - 2019
Publication title -
ukrainian journal of physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.213
H-Index - 17
eISSN - 2071-0194
pISSN - 2071-0186
DOI - 10.15407/ujpe64.2.173
Subject(s) - raman spectroscopy , materials science , atmospheric temperature range , spectral line , intensity (physics) , range (aeronautics) , phase (matter) , molecular physics , atomic physics , analytical chemistry (journal) , optics , physics , chemistry , thermodynamics , quantum mechanics , composite material , chromatography
The unpolarized Raman spectra of TlIn(S0.95Se0.05)2 single crystals in the frequency interval 16–340 cm−1 are studied in the temperature interval 30 ≤ T ≤ 293 K. The Raman spectra are analyzed by a multipeak simulation using Lorentzian contours. The temperature behavior of the vibrational band parameters (half-width, intensity, and frequency) is studied with the emphasis on the temperature range, where changes related to phase transformations are revealed.