Coupled Plasmon-phonon Modes in a Two-dimensional Electron Gas in the Presence of the Rashba Effect
Date
2003
Authors
Xu, Wen
Das, Mukunda P
Lin, L B
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Physics Publishing
Abstract
Elementary electronic excitation is studied theoretically for a two-dimensil electron gas in the presence of spin-orbit (SO) interaction induced by the Rashba effect. We find that in such a system, coupled plasmon-phonon excitation can be achieved via intra- and inter-SO electronic transitions. As a result, six branches of the coupled plasmon-phonon oscillations can be observed. The interesting features of these excitation modes are analysed.
Description
Keywords
Keywords: Electronic properties; Electrons; Excitons; Molecular dynamics; Nonlinear equations; Phonons; Semiconductor materials; Two dimensional; Coupled plasmon-phonon mode; Narrow-gap semiconductor; Rashba effect; Spin-orbit interaction; Two-dimensional electron
Citation
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Source
Journal of Physics: Condensed Matter
Type
Journal article