Role of Attractive Forces in the Relaxation Dynamics of Supercooled Liquids

Joyjit Chattoraj and Massimo Pica Ciamarra
Phys. Rev. Lett. 124, 028001 – Published 13 January 2020
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Abstract

The attractive tail of the intermolecular interaction affects very weakly the structural properties of liquids, while it affects dramatically their dynamical ones. Via the numerical simulations of model systems not prone to crystallization, both in three and in two spatial dimensions, here we demonstrate that the nonperturbative dynamical effects of the attractive forces are tantamount to a rescaling of the activation energy by the glass transition temperature Tg: systems only differing in their attractive interaction have the same structural and dynamical properties if compared at the same value of T/Tg.

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  • Received 27 September 2019

DOI:https://doi.org/10.1103/PhysRevLett.124.028001

© 2020 American Physical Society

Physics Subject Headings (PhySH)

  1. Physical Systems
Polymers & Soft MatterAtomic, Molecular & OpticalStatistical Physics & Thermodynamics

Authors & Affiliations

Joyjit Chattoraj1 and Massimo Pica Ciamarra1,2,*

  • 1School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
  • 2CNR–SPIN, Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli, Italy

  • *massimo@ntu.edu.sg

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Issue

Vol. 124, Iss. 2 — 17 January 2020

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