Melting of 2D Coulomb clusters in dusty plasmas
Loading...
Date
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
The melting of 2D dust clusters caused by one additional particle in the lower layer has experimentally been observed to undergo a two-step transition, which divides the phase of the cluster into three stages. The first transition is a jump of the dust kinetic energy due to the onset of an instability of the lower-layer particle, shifting the cluster from an ordinary to a hot crystalline state. The second transition is the actual phase transition into a liquid state, which occurs at a decisively lower gas pressure. The detailed dynamical properties of the system during the transition were determined in terms of the normal mode analysis.
12th International Congress on Plasma Physics, 25-29 October 2004, Nice (France)
12th International Congress on Plasma Physics, 25-29 October 2004, Nice (France)