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Type: Artigo de periódico
Title: Donors Bound To X Valleys In Type-ii Gaas-alas Quantum Well Structures
Author: Weber G.
Abstract: We calculate the binding energies of donors bound to X valleys in type-II GaAs-AlAs quantum well structures using an anisotropic variational method which enables us to take into account the effective mass anisotropy and quantum confinement. For a comparative study, we use two sets of effective masses obtained from different measurements [B. Rheinänder Phys. Status Solidi B 49, K167 (1972) and M. Goiran , Physica B 177, 465 (1992)]. We show that the binding energies have a pronounced dependence with the effective mass, AlAs layer thickness, and impurity position.© 1995 American Institute of Physics.
Rights: aberto
Identifier DOI: 10.1063/1.114490
Date Issue: 1995
Appears in Collections:Unicamp - Artigos e Outros Documentos

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