Exact-solutions of 2-band models of graded-gap superlattices
We have theoretically investigated two-band models of graded-gap superlattices within the envelope-function approximation. Assuming that the gap varies linearly with spatial coordinate, we are able to find exact solutions of the corresponding Dirac-like equation describing the conduction- and valenc...
| Autores: | , |
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| Tipo de documento: | artigo |
| Data de publicação: | 1994 |
| País: | España |
| Recursos: | Universidad Complutense de Madrid (UCM) |
| Repositório: | Docta Complutense |
| Idioma: | inglês |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/58967 |
| Acesso em linha: | https://hdl.handle.net/20.500.14352/58967 |
| Access Level: | Acceso aberto |
| Palavra-chave: | 538.9 Potentials Física de materiales |
| Resumo: | We have theoretically investigated two-band models of graded-gap superlattices within the envelope-function approximation. Assuming that the gap varies linearly with spatial coordinate, we are able to find exact solutions of the corresponding Dirac-like equation describing the conduction- and valenceband envelope-functions. The dispersion relation inside allowed miniband of the superlattice may be expressed in terms of confluent hypergeometric functions in a closed form. |
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