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Title

Low energy exciton states in a nanoscopic semi-conducting ring

Author(s)

Hu, Hui;  Zhang, Guang-Ming;  Zhu, Jia-Lin;  Xiong, Jia-Jiong

Abstract

We consider an effective mass model for an electron-hole pair in a simplified confinement potential, which is applicable to both a nanoscopic self-assembled semiconducting InAs ring and a quantum dot. The linear optical susceptibility, proportional to the absorption intensity of near-infrared transmission, is calculated as a function of the ring radius R0. Compared with the properties of the quantum dot corresponding to the model with a very small radius R0, our results are in qualitative agreement with the recent experimental measurements by Pettersson et al.

Publication type

Journal article

Source

Physical Review B: Condensed Matter and Material Physics, Vol. 63, no. 4 (Jan 2001), article no. 045320

Publication year

2001

FOR Code(s)

01 Mathematical Sciences;  02 Physical Sciences;  09 Engineering

Keyword(s)

Exciton states

Publisher

American Physical Society

ISSN

1098-0121

Publisher URL

http://dx.doi.org/10.1103/PhysRevB.63.045320

Copyright

Copyright © 2001 The American Physical Society. The accepted manuscript of the paper is reproduced here in accordance with the copyright policy of the publisher for noncommercial use only.

Full text

Peer reviewed