Nonlinear ionic conductivity of lithium silicate glass studied via molecular dynamics simulations

Magnus Kunow; Andreas Heuer

doi:10.1063/1.2198197

Nonlinear ionic conductivity of lithium silicate glass studied via molecular dynamics simulations

J Chem Phys. 2006 Jun 7;124(21):214703. doi: 10.1063/1.2198197.

Authors

Magnus Kunow¹, Andreas Heuer

Affiliation

¹ Institut für Physikalische Chemie and Sonderforschungsbereich 458, Westfälische Wilhelms-Universität, Corrensstrasse 30, D-48149 Münster, Germany.

PMID: 16774427
DOI: 10.1063/1.2198197

Abstract

Nonlinear ionic conductivity effects are studied via molecular dynamics simulations. We present numerical results for the field dependence of the current density as well as the second moment of the ion displacements. Furthermore we check whether structural changes occur upon application of strong electric fields. We obtain a complex picture of the field-dependent ion dynamics of a disordered system that is beyond simple model descriptions.