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Molecular dynamics simulation of aging in amorphous silica

H. Wahlen, H. Rieger

cond-mat.dis-nnarXiv:cond-mat/9912095

Abstract

By means of molecular dynamics simulations we examine the aging process of a strong glass former, a silica melt modeled by the BKS potential. The system is quenched from a temperature above to one below the critical temperature, and the potential energy and the scattering function C(tw,t+tw) for various waiting times tw after the quench are measured. We find that both qualitatively and quantitatively the results agree well with the ones found in similar simulations of a fragile glass former, a Lennard-Jones liquid.

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