Dust-Dust Interaction in a Magnetized Plasma Flow


The new superconducting magnet system SULEIMAN recently installed in the magnetized plasma lab of the group of Prof. Piel, has started operation and pushes the scientific frontier of experimental dusty plasma research a major step forward towards strongly magnetized dusty plasmas. In the recent issue of Physical Review Letters, Jan Carstensen, Franko Greiner and Alexander Piel report about investigations with a high-precision resonance method. They find that strong magnetic fields substantially modify the interparticle forces in dusty plasmas, when the time scale of the ion cyclotron motion becomes comparable to the time scale of the ion plasma oscillations. For typical dusty plasma parameters this transition takes place at magnetic inductions of the order of a few Tesla, which are now experimentally accessible. This work has been performed in the framework of the SFB-TR24

Ion-Wake-Mediated Particle Interaction in a Magnetized-Plasma Flow, Phys. Rev. Lett. 109, 135001 (2012)