Journal
JOURNAL OF THEORETICAL AND APPLIED PHYSICS
Volume 6, Issue 1, Pages -Publisher
SPRINGER HEIDELBERG
DOI: 10.1186/2251-7235-6-2
Keywords
Dusty plasma; Crystal; Dust lattice; Mode coupling; Modulational instability
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Dust lattice modes are studied in a hexagonal two-dimensional lattice in plasma crystal, including paramagnetic dust particles. The gradients of magnetic fields, electric fields, and dust charge and also the interaction of dipole-dipole take into account. These gradients modify the levitation condition and affect the frequencies of dust lattice waves. The coupling between in-plane and out-of-plane modes gives rise to the hybrid mode, which is always an unstable mode. However, intersection of the in-plane mode with other modes does not result in mode-coupling instability.
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