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Force-driven micro-rheology

Voigtmann, Thomas and Fuchs, Matthias (2013) Force-driven micro-rheology. European Physical Journal - Special Topics, 222, pp. 2819-2833. EDP Sciences. doi: 10.1140/epjst/e2013-02060-5. ISSN 1951-6355.

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Within a microscopic formalism for the nonequilibrium response of colloidal suspensions driven by an external force, we study the active micro-rheology of a glass-forming colloidal suspensions. In this technique, a probe particle is subject to an external force, and its nonequilibrium dynamics is monitored. Strong external forcing delocalizes the particle from its nearest-neighbor cage, resulting in a pronounced force-thinning behavior of the single-particle friction. We discuss the dynamics in the vicinity of this delocalization transition, and how long-range transport is induced for a particle that is localized in the quiescent case.

Item URL in elib:https://elib.dlr.de/85970/
Document Type:Article
Title:Force-driven micro-rheology
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Voigtmann, Thomasthomas.voigtmann (at) dlr.deUNSPECIFIED
Fuchs, MatthiasUniversität KonstanzUNSPECIFIED
Date:25 November 2013
Journal or Publication Title:European Physical Journal - Special Topics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1140/epjst/e2013-02060-5
Page Range:pp. 2819-2833
Publisher:EDP Sciences
Keywords:microrheology,colloidal dispersions,nonlinear response
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Research under Space Conditions
DLR - Research theme (Project):R - 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:29 Nov 2013 09:47
Last Modified:06 Sep 2019 15:25

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