Ground-state structures of superparamagnetic two-dimensional dusty plasma crystals

Peter Hartmann, Marlene Rosenberg, Gabor J. Kalman, Z. Donkó

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Ground-state structures of finite, cylindrically confined two-dimensional Yukawa systems composed of charged superparamagnetic dust grains in an external magnetic field are investigated numerically, using molecular dynamic simulations and lattice summation methods. The ground-state configuration of the system is identified using, as an approximation, the experimentally obtained shape of the horizontal confinement potential in a classical single-layer dusty plasma experiment with nonmagnetic grains. Results are presented for the dependence of the number density and lattice parameters of the dust layer on (1) the ratio of the magnetic dipole-dipole force to electrostatic force between the grains and (2) the orientation of the grain magnetic moment with respect to the layer.

Original languageEnglish
Article number016409
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume84
Issue number1
DOIs
Publication statusPublished - Jul 27 2011

Fingerprint

dusty plasmas
Ground State
Crystal
Plasma
ground state
Dipole
crystals
dust
Electrostatic Force
Magnetic Moment
Two-dimensional Systems
magnetic dipoles
Summation
Molecular Dynamics Simulation
External Field
lattice parameters
Horizontal
magnetic moments
Magnetic Field
electrostatics

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Statistical and Nonlinear Physics
  • Statistics and Probability

Cite this

Ground-state structures of superparamagnetic two-dimensional dusty plasma crystals. / Hartmann, Peter; Rosenberg, Marlene; Kalman, Gabor J.; Donkó, Z.

In: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, Vol. 84, No. 1, 016409, 27.07.2011.

Research output: Contribution to journalArticle

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