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Gnann, M. V. and Gazuz, I. and Puertas, A. M. and Fuchs, M. and Voigtmann, Th. (2011) Schematic Models for Active Nonlinear Microrheology. Soft Matter, 7, pp. 1390-1396. Royal Society of Chemistry. doi: 10.1039/c0sm00828a.
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Abstract
We analyze the nonlinear active microrheology of dense colloidal suspensions using a schematic model of mode-coupling theory. The model describes the strongly nonlinear behavior of the microscopic friction coefficient as a function of applied external force in terms of a delocalization transition. To probe this regime, we have performed Brownian dynamics simulations of a system of quasi-hard spheres. We also analyze experimental data on hard-sphere-like colloidal suspensions [Habdas et al., Europhys. Lett., 2004, 67, 477]. The behavior at very large forces is addressed specifically.
| Item URL in elib: | https://elib.dlr.de/71007/ | ||||||||||||||||||||||||
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| Document Type: | Article | ||||||||||||||||||||||||
| Title: | Schematic Models for Active Nonlinear Microrheology | ||||||||||||||||||||||||
| Authors: |
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| Date: | 2011 | ||||||||||||||||||||||||
| Journal or Publication Title: | Soft Matter | ||||||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||||||||||
| Volume: | 7 | ||||||||||||||||||||||||
| DOI: | 10.1039/c0sm00828a | ||||||||||||||||||||||||
| Page Range: | pp. 1390-1396 | ||||||||||||||||||||||||
| Publisher: | Royal Society of Chemistry | ||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||
| Keywords: | nonlinear response, microrheology, colloidal suspension, mode-coupling theory, molecular-dynamics computer simulation | ||||||||||||||||||||||||
| 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: | 04 Oct 2011 16:38 | ||||||||||||||||||||||||
| Last Modified: | 06 Sep 2019 15:20 |
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