11 citations · 11 across the 2 of their papers we have counts for
3 papers
Simulations of Argon Plasma Decay in a Thermionic Converter
R. E. Groenewald, S. Clark, A. Kannan +1
The dynamics of an argon plasma in the gap of a thermionic diode is investigated using particle-in-cell (PIC) simulations. The time-averaged diode current, as a function of the rel…
Localized Plasmons in Topological Insulators
Zhihao Jiang, Malte Rösner, Roelof E. Groenewald +1
We investigate in a fully quantum-mechanical manner how the many-body excitation spectrum of topological insulators is affected by the presence of long-range Coulomb interactions.…
Plasmonic Superconductivity in Layered Materials
M. Rösner, R. E. Groenewald, G. Schönhoff +3
Plasmonic excitations behave fundamentally different in layered materials in comparison to bulk systems. They form gapless modes, which in turn couple at low energies to the electr…