Abstract
We present a first-principle path integral Monte Carlo (PIMC) study of the binding energy of excitons, trions (positively and negatively charged excitons) and biexcitons bound to single-island interface defects in quasi-two-dimensional As quantum wells. We discuss in detail the dependence of the binding energy on the size of the well-width fluctuations and on the quantum-well width. The numerical results for the well-width dependence of the exciton, trions and biexciton binding energy are in good quantitative agreement with the available experimental data.
6 More- Received 19 January 2004
DOI:https://doi.org/10.1103/PhysRevB.70.035323
©2004 American Physical Society