This title appears in the Scientific Report :
2002
Please use the identifier:
http://dx.doi.org/10.1209/epl/i2002-00458-0 in citations.
Structure and tracer-diffusion in quasi-two-dimensional and strongly asymmetric magnetic colloidal mixtures
Structure and tracer-diffusion in quasi-two-dimensional and strongly asymmetric magnetic colloidal mixtures
We study theoretically and experimentally static and diffusional properties of a strongly asymmetric binary mixture of super-paramagnetic colloids confined to an air-water interface. The colloids interact via repulsive dipolar forces, induced by a magnetic field applied perpendicular to the planar i...
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Personal Name(s): | Kollmann, M. |
---|---|
Hund, R. / Rinn, B. / Nägele, G. / Zahn, K. / König, H. / Maret, G. / Klein, R. / Dhont, J. K. G. | |
Contributing Institute: |
Weiche Materie; IFF-WM |
Published in: | epl, 58 (2002) S. 919 - 925 |
Imprint: |
Les Ulis
EDP Sciences
2002
|
Physical Description: |
919 - 925 |
DOI: |
10.1209/epl/i2002-00458-0 |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie |
Series Title: |
Europhysics Letters
58 |
Subject (ZB): | |
Publikationsportal JuSER |
We study theoretically and experimentally static and diffusional properties of a strongly asymmetric binary mixture of super-paramagnetic colloids confined to an air-water interface. The colloids interact via repulsive dipolar forces, induced by a magnetic field applied perpendicular to the planar interface. Brownian dynamics ( BD) computer simulations are employed to analyse the microstructure and the tracer-diffusion of both components. The profound interaction asymmetry leads to unusual features in the partial pair distribution functions, and to significantly enhanced tracer-diffusion. We find good agreement between our experimental data and the computer simulation results. |