Journal
CHEMICAL PHYSICS
Volume 321, Issue 1-2, Pages 69-74Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chemphys.2005.07.039
Keywords
glass-transition; silica; potential; strong glass-former
Ask authors/readers for more resources
Molecular dynamics simulations of amorphous silica are carried out on a large temperature range using a modified version of the BKS inter-atomic potential. We investigate the dependence on the screening procedure of the structural and dynamical properties of amorphous silica. We show that an increased screening of the electrostatic interaction leads to a decrease of the diffusion constants and then to better agreement with experimental data, while structural properties are unchanged. We show that the Arrhenius dependence of the diffusion constants may be reproduced in this case up to a temperature of 4000 K with activation energies very similar to the experimental data. (c) 2005 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available