Simple Lattice-Models of Ion Conduction: Counter Ion Model vs. Random Energy Model
Disordered Systems and Neural Networks
2009-11-07 v1 Statistical Mechanics
Abstract
The role of Coulomb interaction between the mobile particles in ionic conductors is still under debate. To clarify this aspect we perform Monte Carlo simulations on two simple lattice models (Counter Ion Model and Random Energy Model) which contain Coulomb interaction between the positively charged mobile particles, moving on a static disordered energy landscape. We find that the nature of static disorder plays an important role if one wishes to explore the impact of Coulomb interaction on the microscopic dynamics. This Coulomb type interaction impedes the dynamics in the Random Energy Model, but enhances dynamics in the Counter Ion Model in the relevant parameter range.
Cite
@article{arxiv.cond-mat/0206402,
title = {Simple Lattice-Models of Ion Conduction: Counter Ion Model vs. Random Energy Model},
author = {J. Reinisch and A. Heuer},
journal= {arXiv preprint arXiv:cond-mat/0206402},
year = {2009}
}
Comments
To be published in Phys. Rev. B