Autor: |
I. V. Bodnar, V. Riede, A. Eifler, E.A. Kudritskaya |
Rok vydání: |
2003 |
Předmět: |
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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: |
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