Correlation between temperature variations of static and dynamic properties in glass-forming liquids

D. N. Voylov; P. J. Griffin; B. Mercado; J. K. Keum; M. Nakanishi; V. N. Novikov; A. P. Sokolov

doi:10.1103/PhysRevE.94.060603

Correlation between temperature variations of static and dynamic properties in glass-forming liquids

D. N. Voylov, P. J. Griffin, B. Mercado, J. K. Keum, M. Nakanishi, V. N. Novikov, A. P. Sokolov

Soft Materials and Membranes

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

Detailed analysis of the static structure factor S(Q) in several glass-forming liquids reveals that the temperature variations of the width of the main diffraction peak ΔQ(T) correlate with the fragility of these liquids. This observation suggests a direct connection between rather subtle structural changes and sharp slowing down of structural relaxation in glass-forming liquids. We show that this observation can be rationalized using the Adam-Gibbs approach, through a connection between temperature variations of structural correlation length, lc∼2π/ΔQ, and the size of cooperatively rearranging regions.

Original language	English
Article number	060603
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	94
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevE.94.060603
State	Published - Dec 29 2016

Funding

The UTK team acknowledges support from the NSF (USA), DMR-1408811

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10.1103/PhysRevE.94.060603

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title = "Correlation between temperature variations of static and dynamic properties in glass-forming liquids",

abstract = "Detailed analysis of the static structure factor S(Q) in several glass-forming liquids reveals that the temperature variations of the width of the main diffraction peak ΔQ(T) correlate with the fragility of these liquids. This observation suggests a direct connection between rather subtle structural changes and sharp slowing down of structural relaxation in glass-forming liquids. We show that this observation can be rationalized using the Adam-Gibbs approach, through a connection between temperature variations of structural correlation length, lc∼2π/ΔQ, and the size of cooperatively rearranging regions.",

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AU - Voylov, D. N.

AU - Griffin, P. J.

AU - Mercado, B.

AU - Keum, J. K.

AU - Nakanishi, M.

AU - Novikov, V. N.

AU - Sokolov, A. P.

PY - 2016/12/29

Y1 - 2016/12/29

N2 - Detailed analysis of the static structure factor S(Q) in several glass-forming liquids reveals that the temperature variations of the width of the main diffraction peak ΔQ(T) correlate with the fragility of these liquids. This observation suggests a direct connection between rather subtle structural changes and sharp slowing down of structural relaxation in glass-forming liquids. We show that this observation can be rationalized using the Adam-Gibbs approach, through a connection between temperature variations of structural correlation length, lc∼2π/ΔQ, and the size of cooperatively rearranging regions.

AB - Detailed analysis of the static structure factor S(Q) in several glass-forming liquids reveals that the temperature variations of the width of the main diffraction peak ΔQ(T) correlate with the fragility of these liquids. This observation suggests a direct connection between rather subtle structural changes and sharp slowing down of structural relaxation in glass-forming liquids. We show that this observation can be rationalized using the Adam-Gibbs approach, through a connection between temperature variations of structural correlation length, lc∼2π/ΔQ, and the size of cooperatively rearranging regions.

UR - https://www.scopus.com/pages/publications/85007415445

U2 - 10.1103/PhysRevE.94.060603

DO - 10.1103/PhysRevE.94.060603

M3 - Article

AN - SCOPUS:85007415445

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JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

IS - 6

M1 - 060603

ER -

Correlation between temperature variations of static and dynamic properties in glass-forming liquids

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