elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Asymptotic analysis of mode-coupling theory of active nonlinear microrheology

Gnann, M. V. and Voigtmann, Th. (2012) Asymptotic analysis of mode-coupling theory of active nonlinear microrheology. Physical Review E, 86, 011406. American Physical Society. DOI: 10.1103/PhysRevE.86.011406

Full text not available from this repository.

Official URL: http://link.aps.org/doi/10.1103/PhysRevE.86.011406

Abstract

We discuss a schematic model of mode-coupling theory for force-driven active nonlinear microrheology, where a single probe particle is pulled by a constant external force through a dense host medium. The model exhibits both a glass transition for the host and a force-induced delocalization transition, where an initially localized probe inside the glassy host attains a nonvanishing steady-state velocity by locally melting the glass. Asymptotic expressions for the transient density correlation functions of the schematic model are derived, valid close to the transition points. There appear several nontrivial time scales relevant for the decay laws of the correlators. For the nonlinear friction coefficient of the probe, the asymptotic expressions cause various regimes of power-law variation with the external force, and two-parameter scaling laws.

Item URL in elib:https://elib.dlr.de/76661/
Document Type:Article
Title:Asymptotic analysis of mode-coupling theory of active nonlinear microrheology
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gnann, M. V.UNSPECIFIEDUNSPECIFIED
Voigtmann, Th.thomas.voigtmann (at) dlr.deUNSPECIFIED
Date:23 July 2012
Journal or Publication Title:Physical Review E
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:86
DOI :10.1103/PhysRevE.86.011406
Page Range:011406
Publisher:American Physical Society
Status:Published
Keywords:microrheology, mode-coupling theory, glass transition, colloidal suspensions
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 - Forschung unter Weltraumbedingungen
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:24 Jul 2012 09:00
Last Modified:10 Jan 2019 15:49

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.