Open AccessSymmetrical Analysis Phonon Modes of Crystal -Ag8SnSe6
Author(s) -
І. V. Semkiv,
А. І. Кашуба,
Г. А. Ільчук,
M. V. Chekaylo
Publication year - 2015
Publication title -
fìzika ì hìmìâ tverdogo tìla
Language(s) - English
Resource type - Journals
eISSN - 2309-8589
pISSN - 1729-4428
DOI - 10.15330/pcss.16.2.257-260
Subject(s) - phonon , orthorhombic crystal system , raman spectroscopy , crystal (programming language) , symmetry (geometry) , crystal structure , spectral line , condensed matter physics , materials science , phase (matter) , crystallography , chemistry , molecular physics , physics , optics , quantum mechanics , mathematics , geometry , computer science , programming language
Symmetrical analysis of the phonon spectra of lowtemperature b¢-phase of crystal Ag8SnSe6 carried out. At the room temperature argyrodite Ag8SnSe6 belong to orthorhombic system with space group symmetry Pmn21. Classification of the main phonon modes of crystal carried out. Clarified selection rules for Raman spectra and infrared spectra.