%0 Journal Article
%A González Díaz, Germán
%A Blanco, N.
%A Artús, L.
%A Cuscó, R.
%A Ibáñez, J.
%T Raman scattering by LO phonon-plasmon coupled modes in n-type InP
%D 1999
%@ 0163-1829
%U https://hdl.handle.net/20.500.14352/59344
%X We have studied LO phonon-plasmon coupled modes by means of Raman scattering in n-InP for carrier densities between 6x10(16) and 1x10(19) cm(-3). A line-shape theory based on the Lindhard-Mermin dielectric function that takes into account the nonparabolicity of the InP conduction band as well as temperature and finite wave-vector effects is used to fit the Raman spectra and extract accurate values of the electron density. The results obtained from the Lindhard-Mermin model are compared with the charge density determinations based on the Drude and the hydrodynamical models, and the approximations involved in these models are discussed.
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