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Proceedings Paper

Modeling of the surface states of a terminated superlattice using a multiband Hamiltonian
Author(s): Andalib Ahmed Chowdhury; Christine M. Maziar
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Paper Abstract

In most electronic bandstructure calculations of semiconductor superlattices (SLs), periodically extended boundary conditions are used. However the presence of a terminating layer, which breaks the periodicity of the SL, is expected to modify the electronic bandstructure. In this work, we report a model for calculating the localized surface-like states of a terminated SL which includes, for the first time, the nonparabolic nature of the host bandstructures by way of band mixing, unlike the simple one band Kronig-Penney type model. This model is within the framework of the multiband envelope function approximation, which has proven to be a useful and efficient method for the calculation of SL electronic bandstructure.

Paper Details

Date Published: 3 September 1992
PDF: 7 pages
Proc. SPIE 1675, Quantum Well and Superlattice Physics IV, (3 September 1992); doi: 10.1117/12.137599
Show Author Affiliations
Andalib Ahmed Chowdhury, Univ. of Texas/Austin (United States)
Christine M. Maziar, Univ. of Texas/Austin (United States)

Published in SPIE Proceedings Vol. 1675:
Quantum Well and Superlattice Physics IV
Gottfried H. Doehler; Emil S. Koteles, Editor(s)

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