title: Self-organized oscillations of strongly coupled dust coulomb clusters in plasma traps
abstract: The self-organized oscillation of a strongly coupled dust Coulomb cluster with an elongated cross section in a weakly ionized rectangular plasma trap is investigated. Through an inverse supercritical bifurcation at the low rf power end, a low-frequency (about 5 Hz) limit cycle oscillation of the whole cluster associated with the intracluster compressional lattice wave and phase-locked oscillation of the glow intensity distribution is observed. It is caused by the interplay of the dust motion and the shrinking and expanding of the confining dark space.
authors.affiliation: Department of Physics and Center for Complex Systems, National Central University, Chungli, Taiwan 32054, Republic of China.
authors.initials: YC
authors.lastname: Wang
authors.initials: WT
authors.lastname: Juan
authors.initials: L
authors.lastname: I