Optical-absorption spectra of quantum dots and rings with a repulsive scattering centre

被引:146
作者
Halonen, V [1 ]
Pietilainen, P [1 ]
Chakraborty, T [1 ]
机构
[1] INST MATH SCI, MADRAS 600113, TAMIL NADU, INDIA
来源
EUROPHYSICS LETTERS | 1996年 / 33卷 / 05期
关键词
D O I
10.1209/epl/i1996-00350-5
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have studied electron correlation effects in quantum dots and rings which include a repulsive scattering centre and are subjected to a perpendicular magnetic field. The results for the dipole-allowed absorption spectrum show good qualitative agreement with the observed magnetoplasmon dispersion in similar systems. This work provides a unified description of the electron correlations in quantum dots and quantum rings in a magnetic field. We also demonstrate that optical absorption is a direct route to explore the effects of impurity and interactions in a quantum ring.
引用
收藏
页码:377 / 382
页数:6
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