Hole crystallization in semiconductors
强关联电子
2009-11-11 v1 统计力学
摘要
When electrons in a solid are excited to a higher energy band they leave behind a vacancy (hole) in the original band which behaves like a positively charged particle. Here we predict that holes can spontaneously order into a regular lattice in semiconductors with sufficiently flat valence bands. The critical hole to electron effective mass ratio required for this phase transition is found to be of the order of 80.
引用
@article{arxiv.cond-mat/0512376,
title = {Hole crystallization in semiconductors},
author = {M. Bonitz and V. S. Filinov and V. E. Fortov and P. R. Levashov and H. Fehske},
journal= {arXiv preprint arXiv:cond-mat/0512376},
year = {2009}
}
备注
accepted for publication in J. Phys. A: Math. Gen