Interface effects in tunneling models with identical real and complex dispersions

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].