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Infrared and Raman scattering spectra of layered structured Ga3InSe4 crystals

2013-03-01
IŞIK, MEHMET
Hasanlı, Nızamı
KORKMAZ ÖZKAN, FİLİZ
The infrared reflectivity and transmittance and Raman scattering in Ga3InSe4 layered crystals were investigated in the frequency ranges of 100-400, 400-4000 and 25-500 cm(-1). The refractive and absorption indices, the frequencies of transverse and longitudinal optical modes, high- and low-frequency dielectric constants were obtained from the analysis of the IR reflectivity spectra. The bands observed in IR transmittance spectra were interpreted in terms of two-phonon absorption processes. (C) 2012 Elsevier B.V. All rights reserved.