Interface effects in tunneling models with identical real and complex dispersions

Authors
Boykin, TB Lake, RK Klimeck, G Swaminathan, M
Citation
Tb. Boykin et al., Interface effects in tunneling models with identical real and complex dispersions, PHYS REV B, 59(11), 1999, pp. 7316-7319
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
0163-1829 → ACNP
Volume
59
Issue
11
Year of publication
1999
Pages
7316 - 7319
Database
ISI
SICI code
0163-1829(19990315)59:11<7316:IEITMW>2.0.ZU;2-U
Abstract
Simple heterostructure models are often employed due to their computational efficiency. The approximations involved are not, however, well understood; this is particularly true with respect to the interfaces. In order to clar ify this situation we study two different monoatomic (single-band) models a nd two different diatomic (two-band) models all having identical dispersion relations. We study in detail the relationships between the one- and two-b and models, showing that their points of agreement and disagreement arise d irectly from the handling of the interfaces. [S0163-1829(99)01111-X].