Publication
Il Nuovo Cimento B Series 11
Paper

Properties of biexcitons in multi-valley semiconductors

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Abstract

This paper considers the effects on the symmetries and binding energies of biexcitons of 1) the short-range interaction (Coulomb and exchange), 2) a multi-valley conduction band and 3) the mass anisotropy of the valleys. It demonstrates that the ground state of the biexciton in a multi-valley semiconductor should be a spin triplet with an antisymmetric valley function and that poly-excitons X x, x>2, should be stable in a material like Si. © 1977 Società Italiana di Fisica.

Date

28 Oct 2007

Publication

Il Nuovo Cimento B Series 11

Authors

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