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Number of results
2010 | 117 | 5 | 733-737

Article title

Interband Optical Properties of Concentric Type-I Nanorings in a Normal Magnetic Field

Content

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Languages of publication

EN

Abstracts

EN
Two concentric two-dimensional GaAs/(Al,Ga)As nanorings in a normal magnetic field are theoretically studied. The single-band effective mass approximation is adopted for both the electron and the hole states, and the analytical solutions are given. We find that the electronic single particle states are arranged in pairs, which exhibit anticrossings and the orbital momentum transitions in the energy spectrum when magnetic field increases. Their period is essentially determined by the radius of the outer ring. The oscillator strength for interband transitions is strongly reduced close to each anticrossing. We show that an optical excitonic Aharonov-Bohm effect may occur in concentric nanorings.

Keywords

EN

Year

Volume

117

Issue

5

Pages

733-737

Physical description

Dates

published
2010-05

Contributors

author
  • Faculty of Electrical Engineering, University of Belgrade, P.O. Box 3554, 11120 Belgrade, Serbia
author
  • Faculty of Electrical Engineering, University of Belgrade, P.O. Box 3554, 11120 Belgrade, Serbia
author
  • Department of Physics, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium

References

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.bwnjournal-article-appv117n502kz
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