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Título:
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Raman scattering by LO phonon-plasmon coupled modes in n-type InP
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Autores:
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González Díaz, Germán ;
Blanco, N. ;
Artús, L. ;
Cuscó, R. ;
Ibañez, J.
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Tipo de documento:
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texto impreso
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Editorial:
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American Physical Society, 1999-08-15
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Electricidad
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Materia = Ciencias: Física: Electrónica
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Tipo = Artículo
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Resumen:
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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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En línea:
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https://eprints.ucm.es/id/eprint/27481/1/Gonzalez-Diaz%2CG%2091libre.pdf
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