Low-lying energy spectrum of a magnetopolaron bound to a Coulomb impurity in a quantum dot

By using an exact numerical diagonalization scheme, we studied the low-lying spectrum of a magnetopolaron quantum dot with a confined parabolic potential in the presence of a Coulomb impurity at the center. Continuous ground-state energy transitions induced by the magnetic field are reported. Furthe...

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Bibliographic Details
Published in:Solid state communications 1999-01, Vol.112 (10), p.555-560
Main Authors: Lee, C.M., Lam, C.C., Gu, S.W.
Format: Article
Language:English
Subjects:
A. Semiconductors
Collective excitations (including excitons, polarons, plasmons and other charge-density excitations)
Collective excitations (including plasmons and other charge-density excitations)
Condensed matter: electronic structure, electrical, magnetic, and optical properties
D. Electron–electron interactions
D. Electron–phonon interactions
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Exact sciences and technology
Physics
Surface and interface electron states
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Summary:By using an exact numerical diagonalization scheme, we studied the low-lying spectrum of a magnetopolaron quantum dot with a confined parabolic potential in the presence of a Coulomb impurity at the center. Continuous ground-state energy transitions induced by the magnetic field are reported. Furthermore, the effect of different electron–LO phonon interaction strengths on the energy spectrum has been predicted.
ISSN:0038-1098
1879-2766
DOI:10.1016/S0038-1098(99)00398-1