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

被引：5
|
作者：
Xu, W [1 ]
Das, MP
Lin, LB
机构：
[1] Australian Natl Univ, Res Sch Phys Sci & Engn, Dept Theoret Phys, Canberra, ACT 0200, Australia
[2] Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2003年 / 15卷 / 19期
关键词：
D O I：
10.1088/0953-8984/15/19/324
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Elementary electronic excitation is studied theoretically for a two-dimensional 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.
引用
收藏
页码：3249 / 3255
页数：7
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