Delocalization of states in two-component superlattices with correlated disorder
Electron and phonon states in two different models of intentionally disordered superlattices are studied analytically as well as numerically. The localization length is calculated exactly and we found that it diverges for particular energies or frequencies, suggesting the existence of delocalized st...
| Autores: | , , , , |
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| Formato: | artículo |
| Fecha de publicación: | 2000 |
| País: | España |
| Recursos: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/59355 |
| Acesso em linha: | https://hdl.handle.net/20.500.14352/59355 |
| Access Level: | acceso abierto |
| Palavra-chave: | 538.9 Random-Dimer Model Off-Diagonal Disorder Scaling Theory Localization Properties Electron-Transport Binary-Alloys Random Chains Absence Systems Lattices Física de materiales |
| Resumo: | Electron and phonon states in two different models of intentionally disordered superlattices are studied analytically as well as numerically. The localization length is calculated exactly and we found that it diverges for particular energies or frequencies, suggesting the existence of delocalized states for both electrons and phonons. Numerical calculations for the transmission coefficient support the existence of these delocalized states. |
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