Delocalization of states in two-component superlattices with correlated disorder

Authors
Hakobyan, T Sedrakyan, D Sedrakyan, A Gomez, I Dominguez-Adame, F
Citation
T. Hakobyan et al., Delocalization of states in two-component superlattices with correlated disorder, PHYS REV B, 61(17), 2000, pp. 11432-11436
Citations number
38
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
10980121 → ACNP
Volume
61
Issue
17
Year of publication
2000
Pages
11432 - 11436
Database
ISI
SICI code
1098-0121(20000501)61:17<11432:DOSITS>2.0.ZU;2-M
Abstract
Electron and phonon states in two different models of intentionally disorde red superlattices are studied analytically as well as numerically. The loca lization length is calculated exactly and we found that it diverges for par ticular energies or frequencies, suggesting the existence of delocalized st ates for both electrons and phonons. Numerical calculations for the transmi ssion coefficient support the existence of these delocalized states.