Göttingen 2025 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 16: Complex Plasmas and Dusty Plasmas II

P 16.3: Vortrag

Mittwoch, 2. April 2025, 16:45–17:00, ZHG006

Electron sticking coefficients of dusty plasma relevant materials — •Franko Greiner, Isabel König, and Armin Mengel — Institute of Experimental and Applied Physics, Kiel University, 24118 Kiel, Germany

A relative measurement approach [1] was employed to determine the low-energy sticking coefficient s of dielectric materials frequently utilized in "dust in plasma" research, including silica, melamine formaldehyde (MF), and polymethyl methacrylate (PMMA). The new s values offer valuable insights for analyzing experiments involving different materials or their mixtures, facilitating more accurate comparisons and improved experimental design. Additionally, more precise values of s are necessary to enhance the simulation of discharge systems with dielectric electrodes.

[1] A. Mengel et al. PRL 2024,

https://doi.org/10.1103/PhysRevLett.133.185301

Keywords: dusty plasma; electron sticking coefficient; material properties; dust charging