Internal electron-electron interactions in one-dimensional systems detected by Raman spectroscopy

被引：26
|
作者：
Steinebach, C
Krahne, R
Biese, G
Schuller, C
Heitmann, D
Eberl, K
机构：
[1] UNIV HAMBURG,ZENTRUM MIKROSTRUKTURFORSCH,D-20355 HAMBURG,GERMANY
[2] MAX PLANCK INST FESTKORPERFORSCH,D-70569 STUTTGART,GERMANY
来源：
PHYSICAL REVIEW B | 1996年 / 54卷 / 20期
关键词：
D O I：
10.1103/PhysRevB.54.R14281
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have investigated experimentally and theoretically electronic Raman excitations in GaAs-AlxGa1-xAs quantum wires in magnetic fields. In both the experiments and the calculations we find strong anticrossings of the observed confined magnetoplasmon modes in the vicinity of 2 omega(c), where omega(c) is the cyclotron-resonance frequency. The observed splittings and anticrossings arise from internal Coulomb interaction in the one-dimensional electron systems and is found to depend sensitively not only on the wave vector but also on the shape of the confining potential and the mode index of the confined plasmon mode.
引用
收藏
页码：14281 / 14284
页数：4
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