We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Experimental and theoretical study of Raman scattering spectra of ternary chalcogenides Tl<sub>4</sub>HgI<sub>6</sub>, Tl<sub>4</sub>HgBr<sub>6</sub>, and TlHgCl<sub>3</sub>.
- Authors
Yukhymchuk, Volodymyr O.; Dzhagan, Volodymyr M.; Mazur, Nazar V.; Parasyuk, Oleg V.; Khyzhun, Oleg Y.; Luzhnyi, Ivan V.; Yaremko, Anatoliy M.; Valakh, Mykhailo Ya.; Litvinchuk, Alexander P.
- Abstract
The results of a comprehensive experimental and theoretical study of Raman scattering of Tl4HgI6, Tl4HgBr6, and TlHgCl3 ternary chalcogenides are presented. Phonon mode assignment to the specific lattice eigenmodes is achieved via comparison of experimental data with the results of first principle lattice dynamics calculations. Both experimental data and theoretical calculations allow to confirm that Tl4HgBr6 crystals belong to the non‐centrosymmetric space group P4nc, whereas Tl4HgI6 to the centrosymmetric space group P4/mnc. The results of a comprehensive experimental and theoretical study of Raman scattering of Tl4HgI6, Tl4HgBr6, and TlHgCl3 ternary chalcogenides are presented. Experimental Raman modes of the single crystals were assigned using Density functional theory (DFT) results. Tl4HgI6, Tl4HgBr6, and TlHgCl3 are promising for X‐ray and γ‐radiation detectors.
- Subjects
RAMAN scattering; CHALCOGENIDES; PHONONS; SPACE groups; SINGLE crystals; DENSITY functional theory
- Publication
Journal of Raman Spectroscopy, 2018, Vol 49, Issue 11, p1840
- ISSN
0377-0486
- Publication type
Article
- DOI
10.1002/jrs.5468