Raman and infrared vibrational spectra of PbGa2S4 crystal

ZALAMAI, V. V.; SYRBU, N. N.; BEJAN, N. P.; HIRJEU, I.

dc.contributor.author	ZALAMAI, V. V.
dc.contributor.author	SYRBU, N. N.
dc.contributor.author	BEJAN, N. P.
dc.contributor.author	HIRJEU, I.
dc.date.accessioned	2020-09-08T08:14:52Z
dc.date.available	2020-09-08T08:14:52Z
dc.date.issued	2016
dc.identifier.citation	ZALAMAI, V. V., SYRBU, N. N., BEJAN, N. P., HIRJEU, I. Raman and infrared vibrational spectra of PbGa2S4 crystal. In: Materials Science and Condensed Matter Physics : proc. of the 8th intern. conf. Sept. 12-16 2016, Chişinău, 2016, p. 114. ISBN 978-9975-9787-1-2.	en_US
dc.identifier.isbn	978-9975-9787-1-2
dc.identifier.uri	http://repository.utm.md/handle/5014/9284
dc.description	Abstract	en_US
dc.description.abstract	Raman scattering spectra in different geometries at temperatures 10 - 300 K and infrared vibrational spectra were investigated for PbGa2Se crystals. Contours of reflection spectra were calculated and parameters of phonons and dielectric constants were determined. Temperature dependences of Raman spectra were investigated and soft modes with different temperature dependences in intervals 80 - 150 and 150 - 370 K were discovered. A group of lines attributed to Davydov multiplets was found out and their polarization dependences temperature changes were investigated. Effective ion charges were calculated and a polarizability of ionic charges of Pb, Ga and S in PbGa2S4 lattice was determined.	en_US
dc.language.iso	en	en_US
dc.publisher	Institutul de Fizică Aplicată	en_US
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 United States	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.subject	Raman scattering spectra	en_US
dc.subject	crystals	en_US
dc.subject	infrared vibrational spectra	en_US
dc.title	Raman and infrared vibrational spectra of PbGa2S4 crystal	en_US
dc.type	Article	en_US