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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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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Abstract 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.
AbstractList 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.
Author Climente, J I
Rajadell, F
Royo, M
Movilla, J L
Planelles, J
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SubjectTerms Conduction bands
Coupling (molecular)
Electron states
Energy spectra
Magnetic fields
Physics
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Title Electronic states of laterally coupled quantum rings
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