Kondo-excitons and Auger processes in self-assembled quantum dots
Mesoscale and Nanoscale Physics
2016-08-31 v1 Materials Science
Abstract
We describe theoretically novel excitons in self-assembled quantum dots interacting with a two-dimensional electron gas in the wetting layer. In the presence of the Fermi sea, the optical lines become strongly voltage-dependent. If the electron spin is nonzero, the width of optical lines is given by k_BT_K, where T_K is Kondo temperature. If the spin is zero, the exciton couples with the continuum due to Auger-like processes. This leads to anticrossings in a magnetic field. Some of the described phenomena are observed in recent experiments.
Cite
@article{arxiv.cond-mat/0302317,
title = {Kondo-excitons and Auger processes in self-assembled quantum dots},
author = {A. O. Govorov and K. Karrai and R. J. Warburton and A. V. Kalameitsev},
journal= {arXiv preprint arXiv:cond-mat/0302317},
year = {2016}
}
Comments
7 pages, 4 figures; to be published in the Proceedings of MRS Fall Meeting, 2002