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Instabilities of Jammed Packings of Frictionless Spheres Under Load

Journal Article · · Physical Review Letters
 [1];  [2];  [3]
  1. Univ. of Science and Technology of China, Hefei (China); University of Pennsylvania
  2. Univ. of Pennsylvania, Philadelphia, PA (United States)
  3. Univ. of Chicago, IL (United States). James Franck and Enrico Fermi Institutes
In this work, we consider the contribution to the density of vibrational states and the distribution of energy barrier heights of incipient instabilities in a glass modeled by a jammed packing of spheres. On approaching an instability, the frequency of a normal mode and the height of the energy barrier to cross into a new ground state both vanish. These instabilities produce a contribution to the density of vibrational states that scales as ω3 at low frequencies ω, and a contribution to the distribution of energy barriers ΔH that scales as ΔH-1/3 at low barrier heights.
Research Organization:
Univ. of Pennsylvania, Philadelphia, PA (United States)
Sponsoring Organization:
Fundamental Research Funds for the Central Universities; National Natural Science Foundation; Simons Foundation; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
Grant/Contract Number:
FG02-03ER46088; FG02-05ER46199
OSTI ID:
1596541
Alternate ID(s):
OSTI ID: 1409469
OSTI ID: 1541246
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 21 Vol. 119; ISSN 0031-9007; ISSN PRLTAO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (4)

Impact of jamming criticality on low-temperature anomalies in structural glasses journal June 2019
Theory for the density of interacting quasilocalized modes in amorphous solids journal February 2019
Theory for the density of interacting quasi-localised modes in amorphous solids text January 2018
Impact of jamming criticality on low-temperature anomalies in structural glasses text January 2018

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