Formation of polaron clusters
Strongly Correlated Electrons
2007-05-23 v1
Abstract
The formation of spherical polaron clusters is studied within the Frhlich polaron theory. In a dilute polaron gas, using the non-local statistical approach and the polaron pair interaction obtained within the Pekar strong coupling theory, the homogeneous phase results to be unstable toward the appearance of polaron clusters. The physical conditions of formation for the clusters are determined calculating the critical values of electron-phonon interaction for which bound states in the collective polaron potential develop. Finally the sequence in the filling of the states is found and the stability of the clusters is assessed.
Cite
@article{arxiv.cond-mat/0411653,
title = {Formation of polaron clusters},
author = {C. A. Perroni and G. Iadonisi and V. K. Mukhomorov},
journal= {arXiv preprint arXiv:cond-mat/0411653},
year = {2007}
}
Comments
10 pages, 2 tables, 4 figures