2021
DOI: 10.48550/arxiv.2107.07273
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Exciton-exciton and exciton-charge carrier interaction and the exciton collisional broadening in GaAs/AlGaAs quantum wells

B. F. Gribakin,
E. S. Khramtsov,
A. V. Trifonov
et al.

Abstract: Wave functions of heavy-hole excitons in GaAs/Al0.3Ga0.7As square quantum wells (QWs) of various widths are calculated by the direct numerical solution of a three-dimensional Schrödinger equation using a finite-difference scheme. These wave functions are then used to determine the exciton-exciton, exciton-electron and exciton-hole fermion exchange constants in a wide range of QW widths (5 − 150 nm). Additionally, the spin-dependent matrix elements of elastic excitonexciton, exciton-electron and exciton-hole sc… Show more

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