title: Scale-free behavior of a 2D complex plasma during rapid cooling.
abstract: Experimental evidence is presented for a scale-free transition from an unordered to an ordered state in a 2D complex plasma that differs from the KTHNY theory of phase transitions in 2D systems. The transition is characterized by the formation and growth of ordered domains. A fractal relationship is found between the domain areas and domain boundary lengths, which can be explained by a recent theoretical model. The experimental findings are supported by a molecular dynamics simulation of a 2D particle system.
authors: Max Planck Institute for Extraterrestrial Physics, Garching, Germany. knapek@mpe.mpg.de
authors: C A
authors: CA
authors: Knapek
authors: C
authors: C
authors: Durniak
authors: D
authors: D
authors: Samsonov
authors: G E
authors: GE
authors: Morfill