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Title: Vibrational spectroscopy and phonon dispersion of GaSb
Authors: Rakshit, Bipul
Srivastava, Vipul
Sanyal, Sankar P
Jha, P K
Ravindran, T R
Arora, A K
Keywords: Raman scattering;Fourier Transform IR spectrum;Phonon dispersion
Issue Date: Jan-2008
Publisher: CSIR
Abstract: The lattice vibrational properties of III-V semiconductor compound, GaSb have been investigated experimentally using Raman scattering and Fourier Transform Infrared spectroscopic techniques. The experimental results by both the techniques show a sharp peak around 222 cm⁻¹. The experimental results have been analyzed using deformable bond approximation (DBA), whose formalism is a simplified version of deformation dipole model (DDM). The calculated phonon dispersion curves for GaSb, are in excellent agreement with the available inelastic neutron scattering data. The results will be useful to characterize the nano-structured GaSb.
Page(s): 20-22
ISSN: 0019-5596
Appears in Collections:IJPAP Vol.46(01) [January 2008]

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