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Type: Artigo de periódico
Title: Simple Model For Resonant Tunneling Beyond The Effective-mass Approximation
Author: Schulz P.A.
Goncalves Da Silva C.E.T.
Abstract: We evaluate, within a single-band tight-binding model, the resonant transmission probability for a particle through a symmetric barrier-well-barrier potential structure. This is a simplified model of resonant tunneling through (Ga,Al)As-GaAs-(Ga,Al)As heterostructure. We examine both the cases of minimum of the band states at the center (direct-gap tunneling) and at the edge (indirect-gap tunneling) of the Brillouin zone for the barrier material. We show that only the lowest traveling-wave energy states, irrespective of their symmetry, dominate the tunneling. © 1987 The American Physical Society.
Rights: aberto
Identifier DOI: 10.1103/PhysRevB.35.8126
Date Issue: 1987
Appears in Collections:Unicamp - Artigos e Outros Documentos

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