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Title: Local plastic response and slow heterogeneous dynamics of supercooled liquids
Authors: Li, Yan-Wei
Yao, Yugui
Ciamarra, Massimo Pica
Keywords: Science::Physics
Issue Date: 2022
Source: Li, Y., Yao, Y. & Ciamarra, M. P. (2022). Local plastic response and slow heterogeneous dynamics of supercooled liquids. Physical Review Letters, 128(25), 258001-1-258001-6.
Project: MOE2019-T1-001-03 
Journal: Physical Review Letters 
Abstract: We demonstrate, via numerical simulations, that the relaxation dynamics of supercooled liquids correlates well with a plastic length scale measuring a particle's response to impulsive localized perturbations and weakly to measures of local elasticity. We find that the particle averaged plastic length scale vanishes linearly in temperature and controls the super-Arrhenius temperature dependence of the relaxation time. Furthermore, we show that the plastic length scale of individual particles correlates with their typical displacement at the relaxation time. In contrast, the local elastic response only correlates with the dynamics on the vibrational timescale.
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.128.258001
Schools: School of Physical and Mathematical Sciences 
Organisations: CNRS@CREATE LTD
Rights: © 2022 American Physical Society. All rights reserved. This paper was published in Physical Review Letters and is made available with permission of American Physical Society.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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