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Mode Couplings and Conversions for Horizontal Dust Particle Pairs in Complex Plasmas
(IEEE Transactions on Plasma Science, 2013-04)
The normal modes for horizontal dust particle pairs in a complex plasma are investigated using two methods, a numerical calculation and a molecular dynamics simulation. The ion wakefield downstream of each particle and the ...
Determination of the levitation limits of dust particles within the sheath in complex plasma experiments
(Physics of Plasmas, 2012-01-23)
Experiments are performed in which dust particles are levitated at varying heights above the powered electrode in a radio frequency plasma discharge by changing the discharge power. The trajectories of particles dropped ...
Crystallization Dynamics of a Single Layer Complex Plasma
(Physical Review Letters, 2010-09)
We report a series of complex (dusty) plasma experiments, aimed at the study of the detailed time evolution of the recrystallization process following a rapid quench of a two-dimensional dust liquid. The experiments were ...
Mode couplings and resonance instabilities in dust clusters
(Physical Review E, 2013-10-16)
The normal modes for three to seven particle two-dimensional (2D) dust clusters in a complex plasma are investigated using an N-body simulation. The ion wakefield downstream of each particle is shown to induce coupling ...
Photophoresis on polydisperse basalt microparticles under microgravity
(Journal of Aerosol Science, 2014-10)
Photophoresis is a force which can dominate the motion of illuminated aerosols in low pressure environments of laboratory experiments, planetary atmospheres or protoplanetary disks. In drop tower experiments we quantified ...
Spectral approach to transport in the two-dimensional honeycomb lattice with substitutional disorder
(Physical Review B, 2019-01)
The transport properties of a disordered two-dimensional (2D) honeycomb lattice are examined numerically using the spectral approach to the 2D percolation problem, characterized by an Anderson-type Hamiltonian. In our ...
Dust particle pair correlation functions and the non-linear effect of interaction potentials
(IEEE Transactions on Plasma Science, 2019-07)
Dust temperature is a measure of the energy of the stochastic motion of a dust particle, and is a result of the combination of the Brownian motion and the fluctuations in the dust charge and confining electric field. A ...
Cosmic Dust Aggregation with Stochastic Charging
(Astrophysical Journal, 2013-10-04)
The coagulation of cosmic dust grains is a fundamental process which takes place in astrophysical environments, such as presolar nebulae and circumstellar and protoplanetary disks. Cosmic dust grains can become charged ...
Mode couplings and resonance instabilities in finite dust chains
(American Physical Society, 2015-05-08)
Employing a numerical simulation, the normal modes are investigated for finite, one-dimensional horizontal
dust chains in complex plasma. Mode couplings induced by the ion flow within the sheath are identified in the
mode ...
Charging of aggregate grains in astrophysical environments
(Astrophysical Journal, 2013-02-01)
The charging of dust grains in astrophysical environments has been investigated with the assumption that these grains are homogeneous spheres. However, there is evidence which suggests that many grains in astrophysical ...