Suggestion for a two-dimensional cryogenic complex plasmaM. Rosenberg1 and G. J. Kalman2
1 Department of Electrical and Computer Engineering, University of California San Diego - La Jolla, CA 92093, USA
2 Department of Physics, Boston College - Chestnut Hill, MA 02467, USA
received 12 May 2006; accepted in final form 28 July 2006
published online 23 August 2006
In this letter we propose and discuss theoretically an alternative type of two-dimensional complex (dusty) plasma crystal formed by positioning charged dust grains on the surface of liquid helium. We discuss possible advantages of this system, as well as theoretical and experimental issues requiring further exploration.
52.27.Lw - Dusty or complex plasmas: plasma crystals.
73.20.Mf - Collective excitations.
67.90.+z - Other topics in quantum fluids and solids; liquid and solid helium.
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