Berlin 2014 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
P: Fachverband Plasmaphysik
P 20: Poster Session - Dusty Plasmas
P 20.12: Poster
Wednesday, March 19, 2014, 16:30–18:30, SPA Foyer
2D One-Component and Binary Yukawa Systems in a Magnetic Field — •Torben Ott1,2, Hartmut Löwen2, and Michael Bonitz1 — 1Christian-Albrechts-Universität Kiel, Institut für Theoretische Physik und Astrophysik — 2Heinrich-Heine-Universität Düsseldorf, Institut für Theoretische Physik II: Weiche Materie
We consider two-dimensional Yukawa systems in a perpendicular magnetic field. Computer simulations are
carried out to explore the mobility (diffusivity) of one-component and charge-asymmetric binary systems. It is demonstrated
that the mobility scales as the inverse of the magnetic field strength (Bohm diffusion) for strong fields. In binary systems,
the ratio of the mobilities of the two species is tunable by the external magnetic field. It is furthermore shown that for
large magnetic fields, the highly charged particles are practically immobile and form an effective porous matrix for the other species.
[1] T. Ott, H. Löwen, M. Bonitz, arXiv:1311.1668