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Static dielectric properties of polarizable ion models: molecular dynamics study of molten AgI and NaI.

The Journal of chemical physics (2009-06-25)
Vicente Bitrián, Olga Alcaraz, Joaquim Trullàs
ABSTRACT

The fluctuation-dissipation theorem for the static dielectric response function of systems of ions with inducible point dipoles is derived. It is shown that the static longitudinal dielectric function is determined by spatial correlations of both charge and dipole-moment density fluctuations. Moreover, it is deduced that the long-wavelength behavior of the charge structure factor for polarizable ion systems is different from that for systems of rigid ions. Molecular dynamics simulation results of rigid and polarizable ion models for molten AgI and NaI are reported.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Silver iodide, 99%
Sigma-Aldrich
Silver iodide, 99.999% trace metals basis