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Biexcitons in crystals with large ortho—para-exciton splitting

✍ Scribed by A. I. Bobrysheva; S. A. Moskalenko


Book ID
104547412
Publisher
John Wiley and Sons
Year
1983
Tongue
English
Weight
306 KB
Volume
119
Category
Article
ISSN
0370-1972

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✦ Synopsis


Abstract

It is shown that in a system of ortho‐ and para‐excitons two ortho‐excitons with total spin S = 0 interact attractively and biexcitons can be formed. The interaction potential of two ortho‐excitons is approximated by a generalized Morse potential depending on the electron—hole mass ratio σ. On this basis the energy of vibrational and rotational levels of the biexciton is obtained. The binding energy of the biexciton ground state is estimated for all values of σ.


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