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Motional narrowing effect in certain random binary lattices

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Domínguez-Adame Acosta, Francisco (2000) Motional narrowing effect in certain random binary lattices. Physics Letters A, 273 (1-2). pp. 141-145. ISSN 0375-9601

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URL Oficial: http://dx.doi.org/10.1016/S0375-9601(00)00469-2




Resumen

We present a model for a class of random binary lattices by introducing a one-dimensional system where impurities are placed in one sublattice while host atoms lie on the other sublattice. The source of disorder is the stochastic fluctuation of the impurity energy from site to site. We study the optical absorption spectra and the peculiarities of the motional narrowing effect at the band edges for perturbative and nonperturbative degrees of disorder. Analytical results agree well with numerical simulations.


Tipo de documento:Artículo
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© 2000 Elsevier Science B.V. All rights reserved.
The author thanks V. Malyshev and A. Rodr´ıguez for helpful discussions. This work is supported by Comunidad de Madrid under Project 07N/0034/98.

Palabras clave:Localization, Disorder, Systems
Materias:Ciencias > Física > Física de materiales
Código ID:27565
Depositado:05 Dic 2014 10:58
Última Modificación:05 Dic 2014 10:58

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