Microdynamics of dusty plasma liquids in narrow channel: From disorder to order

Wei Yen Woon, Pei Shan Du, Li Wen Deng, I. Lin

Research output: Contribution to journalArticlepeer-review


We report direct observations on the microscopic dynamics of dusty plasma liquid confined in a narrow gap. We measure the horizontal and transverse displacement histograms as well as the transverse particle density distributions from particle trajectories. Under confinement, the liquid forms a layer structure. The dust particle motion at boundaries show anisotropy and three outermost layers is found due to the pinching effect of the boundaries. When the gap width is reduced to below 7 d (d = inter-layer width), the dust particle motion in the central region shows a transition from isotropic motion to anisotropic discrete hopping motion, leading to a slower dynamics and layer structure through the whole liquid.

Original languageEnglish
Pages (from-to)6103-6107
Number of pages5
JournalJournal of Physics A: Mathematical and General
Issue number22 SPEC.ISS.
StatePublished - 6 Jun 2003


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