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Binding of biexcitons in GaAs/Al_{x}Ga_{1-x}As superlattices

Mizeikis, V., Birkedal, D., Langbein, Wolfgang Werner, Lyssenko, V. G. and Hvam, J. M. 1997. Binding of biexcitons in GaAs/Al_{x}Ga_{1-x}As superlattices. Physical Review B 55 (8) , pp. 5284-5289. 10.1103/PhysRevB.55.5284

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Abstract

Properties of the heavy-hole excitons and biexcitons in GaAs/Al0.3Ga0.7As superlattices are studied using linear and nonlinear optical techniques. In superlattices with miniband halfwidths less than the exciton binding energy, the biexciton binding energy is found to be the same as in the noninteracting multiple quantum wells of the same width. When the miniband halfwidth exceeds the exciton binding energy, the biexciton binding energy decreases abruptly to the bulk value.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Publisher: American Physical Society
ISSN: 0163-1829
Last Modified: 04 Jun 2017 05:08
URI: http://orca-mwe.cf.ac.uk/id/eprint/48913

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