Dispersion properties of compressional electromagnetic waves in quantum dusty magnetoplasmas
2006 (English)In: Physics of Plasmas, ISSN 1070-664X, E-ISSN 1089-7674, Vol. 13, no 5, 052113Article in journal (Refereed) PublishedText
A new dispersion relation for low-frequency compressional electromagnetic waves is derived by employing quantum magnetohydrodynamic model and Maxwell equations in cold quantum dusty magnetoplasmas. The latter is composed of inertialess electrons, mobile ions, and immobile charged dust particulates. The dispersion relation for the low-frequency compressional electromagnetic modes is further analyzed for the waves propagating parallel, perpendicular, and oblique to the external magnetic field direction. It is found theoretically and numerically that the quantum parameter alpha(q)=(n(i0)/n(e0))h(2)/(4m(e)m(i)) affects the real angular frequencies and the phase speeds of the compressional electromagnetic modes. Here, n(i0) (n(e0)) is the equilibrium number density of the ions (electrons), m(e) (m(i)) is the electron (ion) mass, and h is the Plank constant divided by 2 pi.
Place, publisher, year, edition, pages
Melville: American Institute of Physics (AIP), 2006. Vol. 13, no 5, 052113
ion-acoustic waves, plasmas, model, simulation, equations
Fusion, Plasma and Space Physics
IdentifiersURN: urn:nbn:se:umu:diva-119398DOI: 10.1063/1.2201535ISI: 000237943000014OAI: oai:DiVA.org:umu-119398DiVA: diva2:927136