1s-like state binding energy of a donor impurity bound to Xz valleys of GaAs/AlAs type II quantum dots with an uniform applied magnetic field

In this paper we calculate the binding energy of a donor impurity in the 1s-like state bound to X valleys of GaAs/AlAs type II quantum dots, using an anisotropic variational method, which allows us to take into account the anisotropy of the effective mass and quantum confinement. The binding energy...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 480; no. 1; pp. 12001 - 4
Main Authors Villamil, Pablo, Ríos, Carlos L Beltrán
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2014
Subjects
Anisotropy
Binding energy
Cylinders
Gallium arsenide
Gallium arsenides
Impurities
Magnetic fields
Magnetism
Physics
Quantum confinement
Quantum dots
Valleys
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Summary:In this paper we calculate the binding energy of a donor impurity in the 1s-like state bound to X valleys of GaAs/AlAs type II quantum dots, using an anisotropic variational method, which allows us to take into account the anisotropy of the effective mass and quantum confinement. The binding energy is plotted against the radius of the cylinder and the uniform magnetic field applied along the cylinder axis. The binding energies have a monotone behavior with the cylinder radius for different magnetic fields and almost constant behavior with increasing magnetic field.
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ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/480/1/012001