Dimensional phase transition in small Yukawa clusters.

  title={Dimensional phase transition in small Yukawa clusters.},
  author={T. E. Sheridan and Kentwood D. Wells},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={81 1 Pt 2},
We investigate the one- to two-dimensional zigzag transition in clusters consisting of a small number of particles interacting through a Yukawa (Debye) potential and confined in a two-dimensional biharmonic potential well. Dusty (complex) plasma clusters with n<or=19 monodisperse particles are characterized experimentally for two different confining wells. The well anisotropy is accurately measured, and the Debye shielding parameter is determined from the longitudinal breathing frequency. Debye… CONTINUE READING

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