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Exact-solutions of 2-band models of graded-gap superlattices

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Méndez Martín, Bianchi and Domínguez-Adame Acosta, Francisco (1994) Exact-solutions of 2-band models of graded-gap superlattices. Physica Status Solidi B-Basic Research, 184 (2). K53-K56. ISSN 0370-1972

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Official URL: http://dx.doi.org/10.1002/pssb.2221840235




Abstract

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.


Item Type:Article
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© Wiley-VCH Verlag.

Uncontrolled Keywords:Potentials
Subjects:Sciences > Physics > Materials
ID Code:24880
Deposited On:02 Apr 2014 15:26
Last Modified:26 May 2016 16:45

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