GENERALIZED K-CENTER-DOT-P PERTURBATION-THEORY FOR ATOMIC-SCALE SUPERLATTICES

Authors
YI H RAZEGHI M
Citation
H. Yi et M. Razeghi, GENERALIZED K-CENTER-DOT-P PERTURBATION-THEORY FOR ATOMIC-SCALE SUPERLATTICES, Physical review. B, Condensed matter, 56(7), 1997, pp. 3933-3936
Citations number
20
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
56
Issue
7
Year of publication
1997
Pages
3933 - 3936
Database
ISI
SICI code
0163-1829(1997)56:7<3933:GKPFAS>2.0.ZU;2-Y
Abstract
We present a generalized k.p perturbation method that is applicable fo r atomic-scale superlattices. The present model is in good quantitativ e agreement with full band theories with local-density approximation, and approaches results of the conventional k.p perturbation method (i. e., Kane's Hamiltonian) with the envelope function approximation for s uperlattices with large periods. The indirect band gap of AlAs/GaAs su perlattices with short periods observed in experiments is explained us ing this method.