Infrared and Raman study of lattice vibrations of CuAlSe2 single crystals

Autor:	I. V. Bodnar, V. Riede, A. Eifler, E.A. Kudritskaya
Rok vydání:	2003
Předmět:	Phonon scattering Infrared Chemistry Analytical chemistry Infrared spectroscopy General Chemistry Crystal structure Low frequency Condensed Matter Physics Molecular physics symbols.namesake Lattice (order) Molecular vibration symbols General Materials Science Raman spectroscopy
Zdroj:	Journal of Physics and Chemistry of Solids. 64:1983-1987
ISSN:	0022-3697
Popis:	The Infrared and Raman study of lattice vibrations of the chalcopyrite compound CuAlSe 2 with a complete assignment of the lattice vibrational modes is reported. Each two modes of E symmetry and one mode of B 2 symmetry have been found in the high frequency (from 250 to 400 cm −1 ), medium frequency (from 160 to 200 cm −1 ) and low frequency (from 60 to 120 cm −1 ) region of the spectrum. Violations of the selection rules of infrared activity observed for the B 1 symmetry mode of highest energy as well as the E symmetry mode of lowest energy may indicate a distortion of the crystal lattice.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::61e41f5b64656a8864d4f6b67626b24c https://doi.org/10.1016/s0022-3697(03)00215-4 Zobrazit plný text záznamu Full Text from ScienceDirect