First-principles computation of random-pinning glass transition, glass cooperative length scales, and numerical comparisons - Sorbonne Université Access content directly
Journal Articles Physical Review B: Condensed Matter and Materials Physics (1998-2015) Year : 2016

First-principles computation of random-pinning glass transition, glass cooperative length scales, and numerical comparisons

Abstract

As a guideline for experimental tests of the ideal glass transition (random-pinning glass transition, RPGT) that shall be induced in a system by randomly pinning particles, we performed first-principle computations within the hypernetted chain approximation and numerical simulations of a hard-sphere model of a glass former. We obtain confirmation of the expected enhancement of glassy behavior under the procedure of random pinning. We present the analytical phase diagram as a function of c and of the packing fraction ϕ, showing a line of RPGT ending in a critical point. We also obtain microscopic results on cooperative length scales characterizing medium-range amorphous order in hard-sphere glasses and indirect quantitative information on a key thermodynamic quantity defined in proximity to ideal glass transitions, the amorphous surface tension. Finally, we present numerical results of pair correlation functions able to differentiate the liquid and the glass phases, as predicted by the analytic computations.
Fichier principal
Vignette du fichier
1403.7180 (437.5 Ko) Télécharger le fichier
Origin Publisher files allowed on an open archive

Dates and versions

hal-01402988 , version 1 (13-12-2023)

Identifiers

Cite

Chiara Cammarota, Beatriz Seoane. First-principles computation of random-pinning glass transition, glass cooperative length scales, and numerical comparisons. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2016, 94 (18), pp.180201(R. ⟨10.1103/PhysRevB.94.180201⟩. ⟨hal-01402988⟩
160 View
1 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More