Coupled plasmon-phonon modes in a two-dimensional electron gas in the presence of Rashba effect

Details Coupled plasmon-phonon modes in a two-dimensional electron gas in the presence of Rashba effect Coupled plasmon-phonon modes in a two-dimensional electron gas in the presence of Rashba effect

2003-04-11

arxiv.org/abs/cond-mat/0304257v1

Physics

Condensed Matter

Materials Science

12 pages, 4 figures

Scientific paper

10.1088/0953-8984/15/19/324

Elementary electronic excitation is studied theoretically for a 2DEG in the presence of spin orbit (SO) interaction induced by Rashba effect. 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 analyzed.

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