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Double Transition Scenario for Anomalous Diffusion in Glass-Forming Mixtures

Voigtmann, Th. and Horbach, J. (2009) Double Transition Scenario for Anomalous Diffusion in Glass-Forming Mixtures. Physical Review Letters, 103 (20), 205901-1-205901-4. American Physical Society. doi: 10.1103/PhysRevLett.103.205901.

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Abstract

We study by molecular dynamics computer simulation a binary soft-sphere mixture that shows a pronounced difference in the species’ long-time dynamics. Anomalous, power-law-like diffusion of small particles arises that can be understood as a precursor of a double-transition scenario, combining a glass transition and a separate small-particle localization transition. Switching off small-particle excluded-volume constraints slows down, rather than enhances, small-particle transport.

Item URL in elib:https://elib.dlr.de/60764/
Document Type:Article
Title:Double Transition Scenario for Anomalous Diffusion in Glass-Forming Mixtures
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Voigtmann, Th.Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR)UNSPECIFIEDUNSPECIFIED
Horbach, J.Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR)UNSPECIFIEDUNSPECIFIED
Date:November 2009
Journal or Publication Title:Physical Review Letters
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:103
DOI:10.1103/PhysRevLett.103.205901
Page Range:205901-1-205901-4
Publisher:American Physical Society
Status:Published
Keywords:binary mixtures, transport phenomena, anomalous diffusion, fast ion conduction, molecular-dynamics computer simulation, mode-coupling theory
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W FR - Forschung unter Weltraumbedingungen (old)
DLR - Research area:Space
DLR - Program:W FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):W - Vorhaben Materialwissenschaftliche Forschung (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space
Deposited By: Voigtmann, Dr.rer.nat. Thomas
Deposited On:24 Nov 2009 09:16
Last Modified:30 May 2019 22:05

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