Experiments and Simulations of Particle Flows in a Magnetized Dust Torus

Reichenstein, T.; Wilms, Jochen; Greiner, Franko; Piel, A.; Melzer, A.

doi:10.1002/ctpp.201200029

Cited by 23 publications

(10 citation statements)

References 21 publications

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“…Open questions include the behavior of larger (but still finite) systems and their transition to bulk order in their central region or the role of particle interaction, e.g. Toroidal dust clouds forming ring-like shell structures along the torus [54] will provide further mutual insight into shell formation and particle flows. Moreover, the dynamics of crystallization from a liquid state as well as the influence of external electric or magnetic fields (on magnetic particles) will be studied and compared to theoretical predictions [53].…”

Section: Discussionmentioning

confidence: 99%

Phase Transitions of Finite Dust Clusters in Dusty Plasmas

Melzer

Schella

Miksch

et al. 2012

Contrib. Plasma Phys.

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Phase transitions of finite systems of charged microspheres trapped in a gaseous discharge plasma in twodimensional and three‐dimensional arrangements are investigated. Novel experimental techniques to drive phase transitions in these dust clusters as well as advanced theoretical concepts to quantitatively characterize these transitions are presented (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Section: Discussionmentioning

confidence: 99%

Phase Transitions of Finite Dust Clusters in Dusty Plasmas

Melzer

Schella

Miksch

et al. 2012

Contrib. Plasma Phys.

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“…This attention is driven by experiments, which have only recently begun. There are at least three magnetized dusty plasma devices [41][42][43], which now, or soon will be, producing experimental data. The prospects for these experiments has motivated simulations, including [44][45][46][47], to study waves for 2D Yukawa liquids and solids under a magnetic field.…”

Section: Introductionmentioning

confidence: 99%

Superdiffusion of two-dimensional Yukawa liquids due to a perpendicular magnetic field

et al. 2014

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Stochastic transport of a two-dimensional (2D) dusty plasma liquid with a perpendicular magnetic field is studied. Superdiffusion is found to occur especially at higher magnetic fields with β of order unity. Here, β = ωc/ω pd is the ratio of the cyclotron and plasma frequencies for dust particles. The mean-square displacement MSD = 4Dαt α is found to have an exponent α > 1, indicating superdiffusion, with α increasing monotonically to 1.1 as β increases to unity. The 2D Langevin molecular dynamics simulation used here also reveals that another indicator of random particle motion, the velocity autocorrelation function (VACF), has a dominant peak frequency ω peak that empirically obeys ω

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“…Such a behavior has been observed for dusty plasmas in DC and RF discharges. In anodic plasmas with horizontally oriented fields rotating dust tori have been produced and studied (Reichstein et al 2012;Pilch et al 2008;Wilms et al 2015;Piel and Wilms 2016;.…”

Section: Rotationmentioning

confidence: 99%

Physics of magnetized dusty plasmas

Melzer¹,

Krüger²,

Maier³

et al. 2021

Rev. Mod. Plasma Phys.

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In this review, we summarize recent advances in the field of dusty plasmas at strong magnetic fields. Special emphasis is put on situations where experimental laboratory observations are available. These generally comprise dusty plasmas with magnetized electrons and ions, but unmagnetized dust. The fundamental parameters characterizing a magnetized (dusty) plasma are given and various effects in dusty plasmas under magnetic fields are presented. As examples, the reaction of the dust component to magnetic-field modified plasma properties, such as filamentation, imposed structures, dust rotation, nanodusty plasmas and the resulting forces on the dust are discussed. Further, the behavior of the dust charge is described and shown to be relatively unaffected by magnetic fields. Wake field formation in magnetized discharges is illustrated: the strength of the wake field is found to be reduced with increased magnetic field. The propagation of dust acoustic waves in magnetized dusty plasmas is experimentally measured and analyzed indicating that the wave dynamics are not heavily influenced by the magnetic field. Only at the highest fields ($$B> 1$$ B > 1 T) the wave activity is found to be reduced. Moreover, it is discussed how dust-cyclotron waves might be used to indicate a magnetized dust component. Finally, implications of a magnetized dusty plasma are illustrated.

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Experiments and Simulations of Particle Flows in a Magnetized Dust Torus

Cited by 23 publications

References 21 publications

Phase Transitions of Finite Dust Clusters in Dusty Plasmas

Phase Transitions of Finite Dust Clusters in Dusty Plasmas

Superdiffusion of two-dimensional Yukawa liquids due to a perpendicular magnetic field

Physics of magnetized dusty plasmas

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