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Title: Mechanical disorder of sticky-sphere glasses. II. Thermomechanical inannealability
Authors: González-López, Karina
Shivam, Mahajan
Zheng, Yuanjian
Ciamarra, Massimo Pica
Lerner, Edan
Keywords: Science::Physics
Issue Date: 2021
Source: González-López, K., Shivam, M., Zheng, Y., Ciamarra, M. P. & Lerner, E. (2021). Mechanical disorder of sticky-sphere glasses. II. Thermomechanical inannealability. Physical Review E, 103(2), 022606-.
Project: MOE2017-T2-1-066 (S)
Journal: Physical Review E 
Abstract: Many structural glasses feature static and dynamic mechanical properties that can depend strongly on glass formation history. The degree of universality of this history dependence and what it is possibly affected by are largely unexplored. Here we show that the variability of elastic properties of simple computer glasses under thermal annealing depends strongly on the strength of attractive interactions between the glasses' constituent particles—referred to here as glass “stickiness.” We find that in stickier glasses the stiffening of the shear modulus with thermal annealing is strongly suppressed, while the thermal-annealing-induced softening of the bulk modulus is enhanced. Our key finding is that the characteristic frequency and density per frequency of soft quasilocalized modes becomes effectively invariant to annealing in very sticky glasses; the latter are therefore deemed “thermomechanically inannealable.” The implications of our findings and future research directions are discussed.
ISSN: 2470-0045
DOI: 10.1103/PhysRevE.103.022606
Rights: © 2021 American Physical Society (APS). All rights reserved. This paper was published in Physical Review E and is made available with permission of American Physical Society (APS).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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