Publication
Title
Interband optical properties of concentric type-I nanorings in a normal magnetic field
Author
Abstract
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.
Language
English
Source (journal)
Acta physica Polonica: A: general physics, solid state physics, applied physics. - Warszawa
Publication
Warszawa : 2010
ISSN
0587-4246
Volume/pages
117:5(2010), p. 733-737
ISI
000278221700003
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
[E?say:metaLocaldata.cgzprojectinf]
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 04.08.2010
Last edited 03.11.2017
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