Gradient effects on dust lattice waves in paramagnetic dusty plasma crystals
محورهای موضوعی : Journal of Theoretical and Applied Physics
Mehran Shahmansouri
1
(Department of Physics, Faculty of Science, Arak University)
کلید واژه: Dusty plasma, Crystal, Dust lattice, Mode coupling, Modulational instability, PACS, 52.27.Lw, 52.25.Zb. 52.25.Vy, 52.35, G,
چکیده مقاله :
AbstractDust 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.
