Dispersion of Plasma Dust Acoustic Waves in the Strong-Coupling Regime
作者： J. B. Pieper , J. Goree
DOI: 10.1103/PHYSREVLETT.77.3137
关键词:
摘要: Low-frequency compressional waves were observed in a suspension of strongly coupled $9.4\ensuremath{\mu}\mathrm{m}$ spheres an rf Kr plasma. Both parts the complex wave number measured to determine dispersion relation, which agreed with theoretical model damped dust acoustic waves, ignoring strong coupling, but not dust-lattice model. The results yield experimental values for plasma frequency, charge, Debye length, and damping rate, support applicability fluid-based relations dusty plasmas, has been controversy.
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