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:
Journal Article
Journal or Publication Title:
Physical review B
Additional Information:
© 2005 The American Physical Society
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
55614
Deposited By:
Deposited On:
10 Jul 2012 08:57
Refereed?:
Yes
Published?:
Published
Last Modified:
27 Nov 2020 01:57