Document Detail


Density reduction and diffusion in driven two-dimensional colloidal systems through microchannels.
MedLine Citation:
PMID:  20481722     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
The behavior of particles driven through a narrow constriction is investigated in experiment and simulation. The system of particles adapts to the confining potentials and the interaction energies by a self-consistent arrangement of the particles. It results in the formation of layers throughout the channel and of a density gradient along the channel. The particles accommodate to the density gradient by reducing the number of layers one by one when it is energetically favorable. The position of the layer reduction zone fluctuates with time while the particles continuously pass this zone. The flow behavior of the particles is studied in detail. The velocities of the particles and their diffusion behavior reflect the influence of the self-organized order of the system.
Authors:
P Henseler; A Erbe; M Köppl; P Leiderer; P Nielaba
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-04-14
Journal Detail:
Title:  Physical review. E, Statistical, nonlinear, and soft matter physics     Volume:  81     ISSN:  1550-2376     ISO Abbreviation:  Phys Rev E Stat Nonlin Soft Matter Phys     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-05-20     Completed Date:  2010-08-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101136452     Medline TA:  Phys Rev E Stat Nonlin Soft Matter Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  041402     Citation Subset:  -    
Affiliation:
Universität Konstanz, Fachbereich für Physik, 78457 Konstanz, Germany. peter.henseler@d-fine.de
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