Directional Ordering and Dynamics in Dusty Plasmas

We use molecular dynamics (MD) simulation methods to investigate dusty plasma crystal structure, with the grains subject to a spherically symmetric Debye-Hueckel potential, a uni-directional external potential and an asymmetric wake potential. The structure is studied as a function of Mach number and magnitude of the wake as well as the strength of the rf input power, using parameters from a self-consistent dust-sheath model