We show how to compute the eigenvalues of an anisotropic Schroedinger equation for light- and heavy-hole excitons using a simplified deltalike interaction potential. Performing the calculation with a potential appropriate to bulk GaAs crystal, we obtain the excitonic binding energies for the heavy- and light-hole excitons, with the heavy-hole binding energy greater than that for the light hole. Inversion of this order for the case of a quantum well is discussed and explained.
HEAVY-HOLE AND LIGHT-HOLE EXCITONS IN ANISOTROPIC SEMICONDUCTORS
TREDICUCCI, ALESSANDRO
1992
Abstract
We show how to compute the eigenvalues of an anisotropic Schroedinger equation for light- and heavy-hole excitons using a simplified deltalike interaction potential. Performing the calculation with a potential appropriate to bulk GaAs crystal, we obtain the excitonic binding energies for the heavy- and light-hole excitons, with the heavy-hole binding energy greater than that for the light hole. Inversion of this order for the case of a quantum well is discussed and explained.File in questo prodotto:
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