Ultrastable metallic glasses in silico

Anshul D. S. Parmar; Misaki Ozawa; Ludovic Berthier

doi:10.1103/physrevlett.125.085505

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arXiv · 2002.01317

Ultrastable metallic glasses in silico

Anshul D. S. Parmar·Misaki Ozawa·Ludovic Berthier

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Abstract

We develop a generic strategy and simple numerical models for multi-component metallic glasses for which the swap Monte Carlo algorithm can produce highly stable equilibrium configurations equivalent to experimental systems cooled more than $10^7$ times slower than in conventional simulations. This paves the way for a deeper understanding of thermodynamic, dynamic, and mechanical properties of metallic glasses. As first applications, we considerably extend configurational entropy measurements down to the experimental glass temperature, and demonstrate a qualitative change of the mechanical response of metallic glasses of increasing stability towards brittleness.

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Anshul D. S. Parmar, Misaki Ozawa, Ludovic Berthier. 2020-02-04. Ultrastable metallic glasses in silico. https://doi.org/10.1103/physrevlett.125.085505

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