Coupled plasmon-phonon modes in a two-dimensional electron gas in the presence of Rashba effect
نویسنده
چکیده
Elementary electronic excitation is studied theoretically for a two-dimensional electron gas in the presence of spin orbit (SO) interaction induced by Rashba effect. We find that in such a system, coupled plasmon-phonon excitation can be achieved via intraand 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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تاریخ انتشار 2003