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Emergent structural length scales in a model binary glass --- the\n micro-second molecular dynamics time-scale regime

2019/09/19 by P. M. Derlet, Derlet, Peter M, R. Maaß +1
Materials Science · Physics and Astronomy · #Material Dynamics and Properties #Glass properties and applications #Theoretical and Computational Physics

paper · pdf · doi:10.48550/arxiv.1909.09215

Abstract

It is now possible to routinely perform atomistic simulations at the\nmicrosecond timescale. In the present work, we exploit this for a model binary\nLennard-Jones glass to study structural relaxation at a timescale spanning up\nto 80 microseconds. It is found that at these longer time-scales, significant\nmobility and relaxation occurs, demonstrating a reproducible relaxation\ntrajectory towards a class of asymptotic structural states which are strongly\nheterogeneous. These structures are discussed both in terms of the ideal glass\nstate and a production route towards novel amorphous crystalline nano-composite\nmicro-structures with strong interface stability.\n

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