Dispersion relation of square lattice waves in a two-dimensional binary complex plasma

Binary complex plasmas consist of microparticles of two different species and can form two-dimensional square lattices under certain conditions. The dispersion relations of the square lattice waves are derived for the longitudinal and transverse in-plane modes, assuming that the out-of-plane mode is...

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Bibliographic Details
Published inarXiv.org
Main Authors Z -C Fu, Zampetaki, A, Huang, H, C -R Du
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 28.08.2020
Subjects
Dusty plasmas
Lattice vibration
Lattices
Microparticles
Physics - Plasma Physics
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Summary:Binary complex plasmas consist of microparticles of two different species and can form two-dimensional square lattices under certain conditions. The dispersion relations of the square lattice waves are derived for the longitudinal and transverse in-plane modes, assuming that the out-of-plane mode is suppressed by the strong vertical confinement. The results are compared with the spectra obtained in Langevin dynamics simulations. Furthermore, we investigate the dependence of the dispersion relation on the charge ratio and mass ratio of the two particle species.
ISSN:2331-8422
DOI:10.48550/arxiv.2008.12558