title: Synchronization of particle motion induced by mode coupling in a two-dimensional plasma crystal.
abstract: The kinematics of dust particles during the early stage of mode-coupling induced melting of a two-dimensional plasma crystal is explored. It is found that the formation of the hybrid mode causes the particle vibrations to partially synchronize at the hybrid frequency. Phase- and frequency-locked hybrid particle motion in both vertical and horizontal directions (hybrid mode) is observed. The system self-organizes in a rhythmic pattern of alternating in-phase and antiphase oscillating chains of particles. The spatial orientation of the synchronization pattern correlates well with the directions of the maximal increment of the shear-free hybrid mode.
authors.affiliation: CNRS, Aix-Marseille Université, Laboratoire de Physique des Interactions Ioniques et Moléculaires, 13397 Marseille cedex 20, France.
authors.forename: L
authors.initials: L
authors.lastname: Couëdel
authors.affiliation: Max Planck Institute for Extraterrestrial Physics, D-85741 Garching, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Zhdanov
authors.affiliation: Max Planck Institute for Extraterrestrial Physics, D-85741 Garching, Germany and Forschungsgruppe Komplexe Plasmen, Deutsches Zentrum für Luft-und-Raumfahrt, Oberpfaffenhofen, Germany.
authors.forename: V
authors.initials: V
authors.lastname: Nosenko
authors.affiliation: Max Planck Institute for Extraterrestrial Physics, D-85741 Garching, Germany.
authors.forename: A V
authors.initials: AV
authors.lastname: Ivlev
authors.affiliation: Max Planck Institute for Extraterrestrial Physics, D-85741 Garching, Germany and Forschungsgruppe Komplexe Plasmen, Deutsches Zentrum für Luft-und-Raumfahrt, Oberpfaffenhofen, Germany.
authors.forename: H M
authors.initials: HM
authors.lastname: Thomas
authors.affiliation: Max Planck Institute for Extraterrestrial Physics, D-85741 Garching, Germany.
authors.forename: G E
authors.initials: GE
authors.lastname: Morfill
mesh_terms: D003198:Computer Simulation; D050866:Liquid Crystals / Q000737:chemistry*; D008956:Models, Chemical; D008958:Models, Molecular; D009038:Motion; D009991:Oscillometry / Q000379:methods*; D012212:Rheology / Q000379:methods*