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Quantum Chemistry

Resonant mechanisms of inelastic light scattering by low-dimensional electron gases.

PubMed
Authors: Jusserand B, Vijayaraghavan MN, Laruelle F, Cavanna A, Etienne B

Year

2000

Paper ID

13272

Status

Peer-reviewed

Abstract Read

~2 min

Abstract Words

84

Citations

21

Abstract

The contribution of elementary excitations in low-dimensional electron gases to resonant inelastic light scattering is found to be determined by interband transitions involving states at specific wave vectors. In modulation-doped GaAs/GaAlAs quantum wells, we detect only the single-particle excitations (SPE) at resonances with electron-hole transitions at the Fermi wave vector, and only plasmons at resonances with zone-center excitons. The plasmon cross section is comparable to the SPE when double electronic resonance is achieved by tuning the plasmon energy to a valence subband separation.

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  • The contribution of elementary excitations in low-dimensional electron gases to resonant inelastic light scattering is found to be determined by interband transitions involving...

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References & Citation Signals

[1] DOI https://doi.org/10.1103/PhysRevLett.85.5400 [2] Publisher https://pubmed.ncbi.nlm.nih.gov/11136006/

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