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Title: Atomic Dynamics in Simple Liquid: de Gennes Narrowing Revisited

Abstract

The de Gennes narrowing phenomenon is frequently observed by neutron or x-ray scattering measurements of the dynamics of complex systems, such as liquids, proteins, colloids, and polymers. The characteristic slowing down of dynamics in the vicinity of the maximum of the total scattering intensity is commonly attributed to enhanced cooperativity. In this Letter, we present an alternative view on its origin through the examination of the time-dependent pair correlation function, the van Hove correlation function, for a model liquid in two, three, and four dimensions. We find that the relaxation time increases monotonically with distance and the dependence on distance varies with dimension. We propose a heuristic explanation of this dependence based on a simple geometrical model. Furthermore, this finding sheds new light on the interpretation of the de Gennes narrowing phenomenon and the α-relaxation time.

Authors:
 [1];  [2];  [1]
  1. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. of Tennessee, Knoxville, TN (United States); Oita Univ. Oita (Japan)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1440836
Alternate Identifier(s):
OSTI ID: 1429955
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 120; Journal Issue: 13; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats

Wu, Bin, Iwashita, Takuya, and Egami, Takeshi. Atomic Dynamics in Simple Liquid: de Gennes Narrowing Revisited. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.120.135502.
Wu, Bin, Iwashita, Takuya, & Egami, Takeshi. Atomic Dynamics in Simple Liquid: de Gennes Narrowing Revisited. United States. doi:10.1103/PhysRevLett.120.135502.
Wu, Bin, Iwashita, Takuya, and Egami, Takeshi. Tue . "Atomic Dynamics in Simple Liquid: de Gennes Narrowing Revisited". United States. doi:10.1103/PhysRevLett.120.135502. https://www.osti.gov/servlets/purl/1440836.
@article{osti_1440836,
title = {Atomic Dynamics in Simple Liquid: de Gennes Narrowing Revisited},
author = {Wu, Bin and Iwashita, Takuya and Egami, Takeshi},
abstractNote = {The de Gennes narrowing phenomenon is frequently observed by neutron or x-ray scattering measurements of the dynamics of complex systems, such as liquids, proteins, colloids, and polymers. The characteristic slowing down of dynamics in the vicinity of the maximum of the total scattering intensity is commonly attributed to enhanced cooperativity. In this Letter, we present an alternative view on its origin through the examination of the time-dependent pair correlation function, the van Hove correlation function, for a model liquid in two, three, and four dimensions. We find that the relaxation time increases monotonically with distance and the dependence on distance varies with dimension. We propose a heuristic explanation of this dependence based on a simple geometrical model. Furthermore, this finding sheds new light on the interpretation of the de Gennes narrowing phenomenon and the α-relaxation time.},
doi = {10.1103/PhysRevLett.120.135502},
journal = {Physical Review Letters},
number = 13,
volume = 120,
place = {United States},
year = {2018},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 2 works
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Figures / Tables:

Table 1 Table 1: Parameters determined from power law fitting to $τ$(r). The errors reflect 95% confidence bounds.

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Works referenced in this record:

Neutron Scattering from Liquid Argon
journal, January 1965


Inelastic X-ray Scattering Studies of the Short-Time Collective Vibrational Motions in Hydrated Lysozyme Powders and Their Possible Relation to Enzymatic Function
journal, January 2013

  • Wang, Zhe; Bertrand, Christopher E.; Chiang, Wei-Shan
  • The Journal of Physical Chemistry B, Vol. 117, Issue 4
  • DOI: 10.1021/jp312842m

Testing mode-coupling theory for a supercooled binary Lennard-Jones mixture I: The van Hove correlation function
journal, May 1995


Atomic diffusion studied with coherent X-rays
journal, July 2009

  • Leitner, Michael; Sepiol, Bogdan; Stadler, Lorenz-Mathias
  • Nature Materials, Vol. 8, Issue 9
  • DOI: 10.1038/nmat2506

Elementary Excitations and Crossover Phenomenon in Liquids
journal, May 2013


Crossover from Independent to Cooperative Segmental Dynamics in Polymers: Experimental Realization in Poly(Vinyl Chloride)
journal, March 1997


de Gennes Narrowing Describes the Relative Motion of Protein Domains
journal, April 2014


The Microscopic Basis of the Glass Transition in Polymers from Neutron Scattering Studies
journal, March 1995


Fast Parallel Algorithms for Short-Range Molecular Dynamics
journal, March 1995


Structural defects in amorphous solids Statistical analysis of a computer model
journal, October 1981


Anisotropic de Gennes Narrowing in Confined Fluids
journal, April 2016


Diffusion, viscosity and structural slowing down in soft sphere alloys near the kinetic glass transition
journal, December 1990


Crowding-Controlled Cluster Size in Concentrated Aqueous Protein Solutions: Structure, Self- and Collective Diffusion
journal, May 2017

  • Braun, Michal K.; Grimaldo, Marco; Roosen-Runge, Felix
  • The Journal of Physical Chemistry Letters, Vol. 8, Issue 12
  • DOI: 10.1021/acs.jpclett.7b00658

Liquid dynamics and inelastic scattering of neutrons
journal, January 1959


Ordering, metastability and phase transitions in two-dimensional systems
journal, April 1973

  • Kosterlitz, J M; Thouless, D J
  • Journal of Physics C: Solid State Physics, Vol. 6, Issue 7, p. 1181-1203
  • DOI: 10.1088/0022-3719/6/7/010

Crossover from Stretched to Compressed Exponential Relaxations in a Polymer-Based Sponge Phase
journal, August 2006


Dynamical diagnostics for the glass transition in soft-sphere alloys
journal, October 1989

  • Roux, J. N.; Barrat, J. L.; Hansen, J. -P
  • Journal of Physics: Condensed Matter, Vol. 1, Issue 39
  • DOI: 10.1088/0953-8984/1/39/028

Theory of Slow Neutron Scattering by Liquids. I
journal, May 1962


Revealing the fast atomic motion of network glasses
journal, May 2014

  • Ruta, B.; Baldi, G.; Chushkin, Y.
  • Nature Communications, Vol. 5, Issue 1
  • DOI: 10.1038/ncomms4939

Seeing real-space dynamics of liquid water through inelastic x-ray scattering
journal, December 2017


Collective dynamics and de Gennes narrowing in polymeric liquid Se: High-resolution inelastic x-ray scattering
journal, June 2008


Heterogeneous Diffusion in Highly Supercooled Liquids
journal, November 1998


    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.