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Exciton and biexciton energies in bilayer systems

Tan, M. Y. J. and Drummond, Neil and Needs, R. J. (2005) Exciton and biexciton energies in bilayer systems. Physical Review B, 71 (3). ISSN 1550-235X

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    Abstract

    We report calculations of the energies of excitons and biexcitons in ideal two-dimensional bilayer systems within the effective-mass approximation with isotropic electron and hole masses. The exciton energies are obtained by a simple numerical integration technique, while the biexciton energies are obtained from diffusion quantum Monte Carlo calculations. The exciton binding energy decays as the inverse of the separation of the layers, while the binding energy of the biexciton with respect to dissociation into two separate excitons decays exponentially.

    Item Type: Article
    Journal or Publication Title: Physical Review B
    Additional Information: © 2005 The American Physical Society
    Subjects: Q Science > QC Physics
    Departments: Faculty of Science and Technology > Physics
    ID Code: 55614
    Deposited By: ep_importer_pure
    Deposited On: 10 Jul 2012 09:57
    Refereed?: Yes
    Published?: Published
    Last Modified: 09 Apr 2014 23:45
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/55614

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