Energy spectrum of D{sup 0} centre in a spherical Gaussian quantum dot

The properties of a neutral hydrogenic donor (D{sup 0}) centres have been studied for a GaAs semiconductor quantum dot with the Gaussian confinement potential. The energy levels of the ground state (n = 1) and the excited states of both the first excited (n = 2) and second excited (n = 3) configurat...

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Bibliographic Details
Main Authors: Boda, Aalu, Chatterjee, Ashok
Format: Conference Proceeding
Language:English
Subjects:
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COLOR CENTERS
COMPARATIVE EVALUATIONS
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
CONFINEMENT
ELECTRONS
ENERGY SPECTRA
EXCITED STATES
GALLIUM ARSENIDES
GROUND STATES
POTENTIALS
QUANTUM DOTS
SEMICONDUCTOR MATERIALS
SPHERICAL CONFIGURATION
VARIATIONAL METHODS
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Summary:The properties of a neutral hydrogenic donor (D{sup 0}) centres have been studied for a GaAs semiconductor quantum dot with the Gaussian confinement potential. The energy levels of the ground state (n = 1) and the excited states of both the first excited (n = 2) and second excited (n = 3) configurations have been calculated by variational method. It has been shown that the excited states of the (D{sup 0}) centre in quantum dot are bound for sufficiently strong confinement potential. The conditions of binding for the ground state as well as excited states have been determined as functions of the potential strength and quantum dot radius. The ground state electron energy is compared with those available in the literature.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4915361