The Structure and Dynamics of Sodium Disilicate
classification
❄️ cond-mat.stat-mech
cond-mat.dis-nn
keywords
structuredynamicssodiumdisilicatesimulationagreementatomsboson
read the original abstract
We investigate the structure and dynamics of sodium disilicate by means of molecular dynamics computer simulation. We show that the structure is described by a partially destroyed tetrahedral SiO_4 network and a spherical super structure formed by the silicon and sodium atoms. The static structure factor of our simulation is in very good agreement with one from a neutron scattering experiment. For 1008 particles we find strong finite size effects in the dynamics which are due to the missing of modes contributing to the boson peak.
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