Interface-phonon dispersion and confined-optical-mode selection rules of GaAs/AlAs superlattices studied by micro-Raman spectroscopy

R. Hessmer; A. Huber; T. Egeler; M. Haines; G. Tränkle; G. Weimann; G. Abstreiter

doi:10.1103/PhysRevB.46.4071

Interface-phonon dispersion and confined-optical-mode selection rules of GaAs/AlAs superlattices studied by micro-Raman spectroscopy

R. Hessmer, A. Huber, T. Egeler, M. Haines, G. Tränkle, G. Weimann, G. Abstreiter

TUM Emeriti of Excellence

Walter Schottky Institut

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

55 Scopus citations

Abstract

Using micro-Raman spectroscopy, we study backscattering from (010) and (11̄0) surfaces of [001]-grown superlattices and establish experimental selection rules. By changing the momentum transfer q parallel to the superlattice layers over a wide range (0≤q≤9×105 cm-1), we studied the dispersion of the interface phonons. The measured dispersion curves are compared to calculations based on the dielectric-continuum model.

Original language	English
Pages (from-to)	4071-4076
Number of pages	6
Journal	Physical Review B
Volume	46
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.46.4071
State	Published - 1992

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abstract = "Using micro-Raman spectroscopy, we study backscattering from (010) and (1{\=1}0) surfaces of [001]-grown superlattices and establish experimental selection rules. By changing the momentum transfer q parallel to the superlattice layers over a wide range (0≤q≤9×105 cm-1), we studied the dispersion of the interface phonons. The measured dispersion curves are compared to calculations based on the dielectric-continuum model.",

author = "R. Hessmer and A. Huber and T. Egeler and M. Haines and G. Tr{\"a}nkle and G. Weimann and G. Abstreiter",

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AU - Hessmer, R.

AU - Huber, A.

AU - Egeler, T.

AU - Haines, M.

AU - Tränkle, G.

AU - Weimann, G.

AU - Abstreiter, G.

PY - 1992

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AB - Using micro-Raman spectroscopy, we study backscattering from (010) and (11̄0) surfaces of [001]-grown superlattices and establish experimental selection rules. By changing the momentum transfer q parallel to the superlattice layers over a wide range (0≤q≤9×105 cm-1), we studied the dispersion of the interface phonons. The measured dispersion curves are compared to calculations based on the dielectric-continuum model.

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DO - 10.1103/PhysRevB.46.4071

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ER -

Interface-phonon dispersion and confined-optical-mode selection rules of GaAs/AlAs superlattices studied by micro-Raman spectroscopy

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