Effects of applied magnetic field on the energy levels of shallow donors in a parabolic quantum dot
โ Scribed by Mohammad El-Said
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 239 KB
- Volume
- 202
- Category
- Article
- ISSN
- 0921-4526
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โฆ Synopsis
The effects of an applied magnetic field of arbitrary strength on shallow donor impurity states in a parabolic quantum dot are theoretically studied. The shifted 1/N-expansion method is used to solve the impurity effective-mass Hamiltonian. The transition energies between the impurity ground and the excited states (2P + ) are also calculated.
๐ SIMILAR VOLUMES
Using a variational procedure within the effective-mass approximation we have calculated the binding energies of shallow-donor impurities in cylindrical GaAs quantum-well wires, in an axial magnetic field and an infinite confinement potential. In contrast to the previous results in quantum wells, we
The binding energy of a donor impurity in a spherical GaAsยฑ(Ga,Al)As quantum dot with parabolic confinement is calculated as a function of the radius of the quantum dot and as a function of the intensity of an applied electric field. Calculations are performed within the effective-mass approximation