Ultrastable Metallic Glasses In Silico

Anshul D. S. Parmar, Misaki Ozawa, and Ludovic Berthier
Phys. Rev. Lett. 125, 085505 – Published 21 August 2020
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Abstract

We develop a generic strategy and simple numerical models for multicomponent metallic glasses for which the swap Monte Carlo algorithm can produce highly stable equilibrium configurations equivalent to experimental systems cooled more than 107 times slower than in conventional simulations. This paves the way for a deeper understanding of the 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 toward brittleness.

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  • Received 28 February 2020
  • Accepted 24 July 2020

DOI:https://doi.org/10.1103/PhysRevLett.125.085505

© 2020 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
  1. Physical Systems
Statistical Physics & Thermodynamics

Authors & Affiliations

Anshul D. S. Parmar1, Misaki Ozawa2, and Ludovic Berthier1,3

  • 1Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, 34095 Montpellier, France
  • 2Laboratoire de Physique Statistique, École Normale Supérieure, CNRS, PSL Research University, Sorbonne Université, 75005 Paris, France
  • 3Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom

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Issue

Vol. 125, Iss. 8 — 21 August 2020

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