Coupled plasmon-LO phonon modes and Lindhard-Mermin dielectric function of n-GaAs

G. Abstreiter; R. Trommer; M. Cardona; A. Pinczuk

doi:10.1016/0038-1098(79)91165-7

Coupled plasmon-LO phonon modes and Lindhard-Mermin dielectric function of n-GaAs

G. Abstreiter, R. Trommer, M. Cardona, A. Pinczuk

Research output: Contribution to journal › Article › peer-review

82 Scopus citations

Abstract

The wave vector dependence of coupled plasmon-LO phonon modes is studied with opaque Raman spectroscopy. The dispersion of the coupled modes is directly related to the wavevector dependence of the dielectric function of the electron gas and is influenced by finite temperatures and finite damping. The broadening of the wavevector due to absorption is also important. These effects are explained with the quantum mechanical Lindhard dielectric function for finite temperature including electron scattering in the relaxation time approximation of Mermin.

Original language	English
Pages (from-to)	703-707
Number of pages	5
Journal	Solid State Communications
Volume	30
Issue number	11
DOIs	https://doi.org/10.1016/0038-1098(79)91165-7
State	Published - Jun 1979
Externally published	Yes

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title = "Coupled plasmon-LO phonon modes and Lindhard-Mermin dielectric function of n-GaAs",

abstract = "The wave vector dependence of coupled plasmon-LO phonon modes is studied with opaque Raman spectroscopy. The dispersion of the coupled modes is directly related to the wavevector dependence of the dielectric function of the electron gas and is influenced by finite temperatures and finite damping. The broadening of the wavevector due to absorption is also important. These effects are explained with the quantum mechanical Lindhard dielectric function for finite temperature including electron scattering in the relaxation time approximation of Mermin.",

author = "G. Abstreiter and R. Trommer and M. Cardona and A. Pinczuk",

year = "1979",

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T1 - Coupled plasmon-LO phonon modes and Lindhard-Mermin dielectric function of n-GaAs

AU - Abstreiter, G.

AU - Trommer, R.

AU - Cardona, M.

AU - Pinczuk, A.

PY - 1979/6

Y1 - 1979/6

N2 - The wave vector dependence of coupled plasmon-LO phonon modes is studied with opaque Raman spectroscopy. The dispersion of the coupled modes is directly related to the wavevector dependence of the dielectric function of the electron gas and is influenced by finite temperatures and finite damping. The broadening of the wavevector due to absorption is also important. These effects are explained with the quantum mechanical Lindhard dielectric function for finite temperature including electron scattering in the relaxation time approximation of Mermin.

AB - The wave vector dependence of coupled plasmon-LO phonon modes is studied with opaque Raman spectroscopy. The dispersion of the coupled modes is directly related to the wavevector dependence of the dielectric function of the electron gas and is influenced by finite temperatures and finite damping. The broadening of the wavevector due to absorption is also important. These effects are explained with the quantum mechanical Lindhard dielectric function for finite temperature including electron scattering in the relaxation time approximation of Mermin.

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U2 - 10.1016/0038-1098(79)91165-7

DO - 10.1016/0038-1098(79)91165-7

M3 - Article

AN - SCOPUS:0018482810

SN - 0038-1098

VL - 30

SP - 703

EP - 707

JO - Solid State Communications

JF - Solid State Communications

IS - 11

ER -

Coupled plasmon-LO phonon modes and Lindhard-Mermin dielectric function of n-GaAs

Abstract

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