Quadrilateral Particle Arrangement within Shocks in a Two-Dimensional Dusty Plasma

Anton Kananovich; J Goree

doi:10.48550/arxiv.2404.03078

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Quadrilateral Particle Arrangement within Shocks in a Two-Dimensional Dusty Plasma

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Quadrilateral Particle Arrangement within Shocks in a Two-Dimensional Dusty Plasma

Anton Kananovich and J Goree

arXiv.org

Cornell University

04/03/2024

DOI: 10.48550/arxiv.2404.03078

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Preprint (Author's original)This preprint has not been evaluated by subject experts through peer review. Preprints may undergo extensive changes and/or become peer-reviewed journal articles. Open Access

Abstract

The microscopic structure within a two-dimensional shock was studied using data from a dusty plasma experiment. A single layer of charged microparticles, levitated in a glow-discharge plasma, was perturbed by an electrically floating wire that was moved at a steady supersonic speed to excite a compressional shock. A rearrangement of particles was observed, from a hexagonal lattice in the preshock into a quadrilateral microstructure within the shock. This quadrilateral structure would not be stable in a monolayer of identical repulsive particles, under equilibrium conditions. Glaser-Clark polygon analysis of the microstructure helped in identifying quadrilaterals. Voronoi analysis was used to characterize the defect fraction behind the shock, as an indication of shock-induced melting.

Physics - Plasma Physics

Details

Title: Subtitle: Quadrilateral Particle Arrangement within Shocks in a Two-Dimensional Dusty Plasma
Creators: Anton Kananovich
J Goree
Resource Type: Preprint
Publication Details: arXiv.org
DOI: 10.48550/arxiv.2404.03078
eISSN: 2331-8422
Publisher: Cornell University; Ithaca, New York
Language: English
Date posted: 04/03/2024
Academic Unit: Physics and Astronomy; Mechanical Engineering
Record Identifier: 9984580300902771

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