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Binding Energy of Hydrogenic Impurity States in an Inverse Parabolic Quantum Well Under Electric and Magnetic Fields Parallel to the Growth Direction

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In the present theoretical study we investigate the influence of external fields (electric and magnetic) on the binding energy of hydrogenic impurities in a GaAs/Ga1–xAlxAs inverse parabolic quantum well. Our calculations have been based on the potential morphing method in the effective mass approximation. Concerning the behavior of the binding energy as a function of the impurity position, the existence of the electric field causes an asymmetry on the binding energy, which is stronger for intermediate confinements. Furthermore, as our results indicate the binding energy depends strongly on the different Al concentrations at the well center, the length of the quantum well as well as on the magnetic field.
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Document Type: Research Article

Publication date: 2010-02-01

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  • Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
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