Electronic states of laterally coupled quantum rings

The conduction band electron states of laterally-coupled semiconductor quantum rings are studied within the frame of the effective mass envelope function theory. We consider the effect of axial and in-plane magnetic fields for several inter-ring distances, and find strong changes in the energy spect...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 61; no. 1; pp. 936 - 941
Main Authors Planelles, J, Rajadell, F, Climente, J I, Royo, M, Movilla, J L
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.04.2007
Subjects
Conduction bands
Coupling (molecular)
Electron states
Energy spectra
Magnetic fields
Physics
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Summary:The conduction band electron states of laterally-coupled semiconductor quantum rings are studied within the frame of the effective mass envelope function theory. We consider the effect of axial and in-plane magnetic fields for several inter-ring distances, and find strong changes in the energy spectrum depending on the coupling regime. Our results indicate that the magnetic response accurately monitors the quantum ring molecule dissociation process. Moreover, the anisotropic response of the electron states to in-plane magnetic fields provides information on the orientation of the quantum ring molecule.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/61/1/186