Collision-narrowing of Raman spectrum for spin-density fluctuations of electrons in n-GaAs

The inelastic light-scattering spectrum for single-particle excitations in n-GaAs has been found to be considerably narrower than the Gaussian form usually predicted for a Maxwell-Boltzmann energy distribution. In this paper, we compare the contribution to the narrowing for two factors: collisions a...

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Bibliographic Details
Published in:Solid state communications 1983-01, Vol.45 (8), p.685-687
Main Authors: Tsen, K.T., Bray, Ralph
Format: Article
Language:English
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Summary:The inelastic light-scattering spectrum for single-particle excitations in n-GaAs has been found to be considerably narrower than the Gaussian form usually predicted for a Maxwell-Boltzmann energy distribution. In this paper, we compare the contribution to the narrowing for two factors: collisions and the momentum-dependence of resonant enhancement terms. The analysis is restricted to the spin-density fluctuation mechanism, which has been found to be best suited for probing the electron distribution.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(83)90233-8