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dc.contributor.authorHarris, B. J.
dc.contributor.authorMatthews, L.S.
dc.contributor.authorHyde, T. W.
dc.date.accessioned2014-07-31T15:13:56Z
dc.date.available2014-07-31T15:13:56Z
dc.date.issued2013-05-24
dc.identifier.citationPhys Rev E, 87(5), 053109, 2013en_US
dc.identifier.urihttp://hdl.handle.net/2104/9127
dc.description.abstractA complex plasma vertical oscillation experiment which modifies the bulk is presented. Spherical, micron-sized particles within a Coulomb crystal levitated in the sheath above the powered lower electrode in a GEC reference cell are perturbed using a probe attached to a Zyvex S100 Nanomanipulator. By oscillating the probe potential sinusoidally, particle motion is found to be asymmetric, exhibiting superharmonic response in one case. Using a simple electric field model for the plasma sheath, including a nonzero electric field at the sheath edge, dust particle charges are found by employing a balance of relevant forces and emission analysis. Adjusting the parameters of the electric field model allowed the change predicted in the levitation height to be compared with experiment. A discrete oscillator Green's function is applied using the derived force, which accurately predicts the particle's motion and allows the determination of the electric field at the sheath edge.en_US
dc.language.isoenen
dc.publisherPhysical Review Een_US
dc.titleVertical probe-induced asymmetric dust oscillation in complex plasmaen_US
dc.typeArticleen
dc.identifier.doi10.1103/PhysRevE.87.053109
dc.description.keywordsplasma sheathen_US
dc.description.keywordsprobeen_US
dc.description.keywordsoscillationen_US


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