Raman spectra of the chalcopyrite compound CuInTe2

The lattice vibrational modes of the chalcopyrite compound CuInTe2 have bee n obtained at several temperatures by the unpolarized Raman spectra. Lines observed at 48, 74, 129, 138, 155, and 185 cm(-1), identified with E modes, and at 60, 106, and 170 cm(-1), assigned to B-2 modes, agree quite well wi th the peaks reported from infrared reflectivity data. On the other hand, u sing the available theoretical models, the peaks that appear at 123 cm(-1) and those observed around 65, 116, and 223 cm(-1), which are only Raman act ive, are assigned to the A(1) and B-1 modes, respectively. (C) 1999 America n Institute of Physics. [S0021-8979(99)01806-X].