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Title: Disordered surface vibrations in jammed sphere packings

Abstract

We study the vibrational properties near a free surface of disordered spring networks derived from jammed sphere packings. In bulk systems, without surfaces, it is well understood that such systems ω* frequency is controlled by ΔZ = $$\langle$$Z$$\rangle$$ - 2d, the difference between the average coordination of the spheres and twice the spatial dimension, d, of the system, which vanishes at the jamming transition. In the presence of a free surface we find that there is a density of disordered vibrational modes associated with the surface that extends far below ω . The total number of these low-frequency surface modes is controlled by ΔZ, and the profile of their decay into the bulk has two characteristic length scales, which diverge as ΔZ-1/2 and ΔZ-1 as the jamming transition is approached.

Authors:
 [1];  [1];  [1];  [2]
  1. Univ. of Pennsylvania, Philadelphia, PA (United States)
  2. Univ. of Chicago, IL (United States)
Publication Date:
Research Org.:
Univ. of Chicago, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1596345
Grant/Contract Number:  
FG02-03ER46088
Resource Type:
Accepted Manuscript
Journal Name:
Soft Matter
Additional Journal Information:
Journal Volume: 11; Journal Issue: 14; Journal ID: ISSN 1744-683X
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Surface vibrations, jammed packings, disorder

Citation Formats

Sussman, Daniel M., Goodrich, Carl P., Liu, Andrea J., and Nagel, Sidney R. Disordered surface vibrations in jammed sphere packings. United States: N. p., 2015. Web. doi:10.1039/c4sm02905d.
Sussman, Daniel M., Goodrich, Carl P., Liu, Andrea J., & Nagel, Sidney R. Disordered surface vibrations in jammed sphere packings. United States. https://doi.org/10.1039/c4sm02905d
Sussman, Daniel M., Goodrich, Carl P., Liu, Andrea J., and Nagel, Sidney R. Wed . "Disordered surface vibrations in jammed sphere packings". United States. https://doi.org/10.1039/c4sm02905d. https://www.osti.gov/servlets/purl/1596345.
@article{osti_1596345,
title = {Disordered surface vibrations in jammed sphere packings},
author = {Sussman, Daniel M. and Goodrich, Carl P. and Liu, Andrea J. and Nagel, Sidney R.},
abstractNote = {We study the vibrational properties near a free surface of disordered spring networks derived from jammed sphere packings. In bulk systems, without surfaces, it is well understood that such systems ω* frequency is controlled by ΔZ = $\langle$Z$\rangle$ - 2d, the difference between the average coordination of the spheres and twice the spatial dimension, d, of the system, which vanishes at the jamming transition. In the presence of a free surface we find that there is a density of disordered vibrational modes associated with the surface that extends far below ω . The total number of these low-frequency surface modes is controlled by ΔZ, and the profile of their decay into the bulk has two characteristic length scales, which diverge as ΔZ-1/2 and ΔZ-1 as the jamming transition is approached.},
doi = {10.1039/c4sm02905d},
journal = {Soft Matter},
number = 14,
volume = 11,
place = {United States},
year = {Wed Feb 11 00:00:00 EST 2015},
month = {Wed Feb 11 00:00:00 EST 2015}
}

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Works referencing / citing this record:

Topological boundary modes in jammed matter
journal, January 2016

  • Sussman, Daniel M.; Stenull, Olaf; Lubensky, T. C.
  • Soft Matter, Vol. 12, Issue 28
  • DOI: 10.1039/c6sm00875e

Disentangling defects and sound modes in disordered solids
journal, January 2017


Disentangling defects and sound modes in disordered solids
preprint, January 2015


Topological boundary modes in jammed matter
text, January 2015