Bulk and surface electronic states in semiconductor superlattices

We study the bulk and surface electronic states of semiconductor superlattices with the help of a simple two-band model. The superlattice has a larger periodicity in the direction perpendicular to the slabs and therefore many electronic branches in the folded Brillouin zone. In the gaps existing bet...

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Published in:Surface science 1986-02, Vol.166 (2), p.301-326
Main Authors: Masri, P., Dobrzynski, L., Djafari-Rouhani, B., Idiodi, J.O.A.
Format: Article
Language:English
Subjects:
Applied sciences
Electronics
Engineering Sciences
Exact sciences and technology
Interfaces
Physics
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
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cited_by cdi_FETCH-LOGICAL-c398t-3cb6ad6687da220b6b00ffade189d7ae0197099db10e377bf9e3c5a4aebf3e283
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container_end_page 326
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creator Masri, P.
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description We study the bulk and surface electronic states of semiconductor superlattices with the help of a simple two-band model. The superlattice has a larger periodicity in the direction perpendicular to the slabs and therefore many electronic branches in the folded Brillouin zone. In the gaps existing between the bulk branches appear the surface localized modes. The simplicity of the model used here allows one to obtain in closed form the bulk and (001) surface Green function for this superlattice. The analytic knowledge of these functions enables us to study easily the bulk and surface electronic bands of this semiconductor superlattice, which otherwise require important numerical calculations. We give here for the first time the analytic expression we obtained for the folded bulk electronic bands and also the expression that gives the surface electronic states. A few figures, especially for InAsGaSb and GaAsAlAs superlattices illustrate these results.
doi_str_mv 10.1016/0039-6028(86)90681-3
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subjects Applied sciences
Electronics
Engineering Sciences
Exact sciences and technology
Interfaces
Physics
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
title Bulk and surface electronic states in semiconductor superlattices
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