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

被引：148

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

页码：377 / 382

页数：6

共 37 条

[1] N-ELECTRON GROUND-STATE ENERGIES OF A QUANTUM-DOT IN MAGNETIC-FIELD [J].