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Dynamic Arrest in Multicomponent Glass-Forming Alloys

Bartsch, A. and Rätzke, K. and Meyer, A. and Faupel, F. (2010) Dynamic Arrest in Multicomponent Glass-Forming Alloys. Physical Review Letters, 104, pp. 195901-195904. DOI: 10.1103/PhysRevLett.104.195901.

Full text not available from this repository.

Abstract

We report radiotracer diffusivities in a Pd43Cu27Ni10P20 melt, presenting for the first time a complete set of data for all components over the whole relevant temperature range. While a vast decoupling of more than 4 orders of magnitude is observed between the diffusivity of Pd and of the smaller components, at the glass transition temperature Tg, the diffusivities of all components merge close to the critical temperature Tc of mode coupling theory. For Pd, the Stokes-Einstein relation holds in the whole range investigated encompassing more than 14 orders of magnitude suggesting the formation of a slow subsystem as a key to glass formation in systems with dynamic asymmetry.

Document Type:Article
Title:Dynamic Arrest in Multicomponent Glass-Forming Alloys
Authors:
AuthorsInstitution or Email of Authors
Bartsch, A.UNSPECIFIED
Rätzke, K.UNSPECIFIED
Meyer, A.UNSPECIFIED
Faupel, F.UNSPECIFIED
Date:17 May 2010
Journal or Publication Title:Physical Review Letters
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:104
DOI:10.1103/PhysRevLett.104.195901
Page Range:pp. 195901-195904
Status:Published
Keywords:atomic diffusion, bulk glass-forming liquid alloys, glass transition
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: Prof.Dr. Andreas Meyer
Deposited On:18 May 2010 09:46
Last Modified:07 Feb 2013 20:39

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