PMID: 22587096May 17, 2012Paper

Nonaffine measures of particle displacements in sheared colloidal glasses

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
V Chikkadi, P Schall

Abstract

The nonaffine motion of particles is central to the relaxation and flow of glasses. It is usually assumed in plasticity theories that nonaffine rearrangements are localized and uncorrelated. Here we present evidence that this assumption may not hold. We investigate and compare systematically different measures of nonaffinity in a sheared colloidal glass by tracking the motion of the individual particles directly with confocal microscopy. We show that besides differences in the appearance and degree of localization of nonaffine displacements, the nature of their fluctuations is very similar. At intermediate times, all spatial correlation functions display robust power-law behavior, clearly demonstrating long-range correlations and critical behavior of the driven glass, in contrast to the assumptions of plasticity theories. We show that on long-time scales, correlations become finite and plasticity theories may apply.

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Citations

Jun 27, 2014·The European Physical Journal. E, Soft Matter·Alexandre NicolasJean-Louis Barrat
Dec 10, 2014·Proceedings of the National Academy of Sciences of the United States of America·Daniel J StricklandDaniel S Gianola
May 11, 2019·Proceedings of the National Academy of Sciences of the United States of America·Tingtao ZhouR J-M Pellenq
Sep 12, 2015·The European Physical Journal. E, Soft Matter·Michael Schindler, A C Maggs
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Sep 15, 2016·Physical Review. E·Nikolai V Priezjev
Jan 21, 2017·Physical Review Letters·M LauratiA Zaccone
Apr 22, 2017·Physical Review Letters·Antina GhoshPeter Schall
Jul 18, 2018·Physical Review. E·Alexandre Nicolas, Jörg Rottler
Feb 14, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·J Clara-RaholaEric R Weeks
May 31, 2019·Physical Review Letters·Norihiro OyamaKuniyasu Saitoh
Apr 26, 2014·Physical Chemistry Chemical Physics : PCCP·Daniel J StricklandDaniel S Gianola
Sep 19, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Daniel M SussmanAndrea J Liu
Sep 15, 2016·Physical Review. E·Kuniyasu Saitoh, Hideyuki Mizuno
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Sep 17, 2013·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Suvendu MandalFathollah Varnik

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