Abstract
Abstract The structure and dynamics of sodium disilicate are studied by molecular dynamics computer simulation. The structure is described by a partially destroyed tetrahedral SiO4 network and a spherical superstructure formed by the silicon and sodium atoms. The static structure factor of this simulation is in very good agreement with one from a neutron scattering experiment. For 1008 particles there are strong finite size effects in the dynamics which are due to the absence of modes contributing to the boson peak.
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