Skyrmionic excitons
Mesoscale and Nanoscale Physics
2009-10-30 v2
Abstract
We investigate the properties of a Skyrmionic exciton consisting of a negatively charged Skyrmion bound to a mobile valence hole. A variational wave function is constructed which has the generalized total momentum P as a good quantum number. It is shown that the Skyrmionic exciton can have a larger binding energy than an ordinary magnetoexciton and should therefore dominate the photoluminescence spectrum in high-mobility quantum wells and heterojunctions where the electron-hole separation exceeds a critical value. The dispersion relation for the Skyrmionic exciton is discussed.
Cite
@article{arxiv.cond-mat/9707045,
title = {Skyrmionic excitons},
author = {T. Portengen and J. R. Chapman and V. Nikos Nicopoulos and N. F. Johnson},
journal= {arXiv preprint arXiv:cond-mat/9707045},
year = {2009}
}
Comments
9 pages, RevTex, 2 PostScript figures. Replaced with version to appear in Phys. Rev. B Rapid Communications. Short discussion of variational state added