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Type: Artigo de evento
Title: Effects Of Applied Magnetic Fields On Direct And Indirect Excitons In Coupled Semiconductor Quantum Wells
Author: Reyes-Gomez E.
Oliveira L.E.
De Dios-Leyva M.
Abstract: We have investigated magnetic-field effects on the direct- and indirect-exciton dispersions and on the exciton effective mass in the plane perpendicular to the applied field, within the variational framework and effective-mass approximation, for coupled GaAs-(Ga, Al)As quantum wells. The simple hydrogen-like envelope wave function we have used provides the expected behavior for the exciton dispersion law in a wide range of the center-of-mass momenta, and leads to an analytical expression for the exciton effective mass. Theoretical results for the magnetic-field dependent exciton dispersion and effective mass are in quite good agreement with available experimental measurements. © 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Citation: Physica Status Solidi (b) Basic Research. , v. 242, n. 9, p. 1829 - 1832, 2005.
Rights: fechado
Identifier DOI: 10.1002/pssb.200461733
Date Issue: 2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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