- Ultrastable metallic glasses in silico doi link

Auteur(s): Parmar A. D. S., Ozawa M., Berthier L.

(Article) Publié: Physical Review Letters, vol. p.085505 (2020)
Texte intégral en Openaccess : arXiv

PMID 32909772
Ref Arxiv: 2002.01317
DOI: 10.1103/PhysRevLett.125.085505
WoS: 000561724800007
Ref. & Cit.: NASA ADS

We devise 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 a first application, we extend configurational entropy measurements down to the experimental glass temperature, and demonstrate a qualitative evolution of the mechanical response of metallic glasses of increasing stability towards brittleness.

Commentaires: 11 pages, 9 figs. Réf Journal: Phys. Rev. Lett. 125, 085505 (2020)