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

PM Derlet and R Maass, JOURNAL OF ALLOYS AND COMPOUNDS, 821, 153209 (2020).

DOI: 10.1016/j.jallcom.2019.153209

It is now possible to routinely perform atomistic simulations at the microsecond timescale. In the present work, we exploit this for a model binary Lennard-Jones glass to study structural relaxation at a timescale spanning up to 80 mu s. It is found that at these longer time-scales, significant mobility and relaxation occurs, demonstrating a reproducible relaxation trajectory towards a class of asymptotic structural states which are strongly heterogeneous. These structures are discussed both in terms of the ideal glass state and a production route towards novel amorphous crystalline nano-composite micro-structures with strong interface stability. (C) 2019 Elsevier B.V. All rights reserved.

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