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Author Maroof, R. ♦ Qamar, A. ♦ Mushtaq, A.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ♦ PLASMA PHYSICS AND FUSION TECHNOLOGY ♦ ABUNDANCE ♦ ASTROPHYSICS ♦ BOHM CRITERION ♦ CORRECTIONS ♦ DISPERSION RELATIONS ♦ ELECTRON DENSITY ♦ EXCHANGE INTERACTIONS ♦ FLOW MODELS ♦ FREE ELECTRON LASERS ♦ MAGNETIZATION ♦ MAGNETOACOUSTIC WAVES ♦ NANOTECHNOLOGY ♦ PLANETS ♦ POTENTIALS ♦ QUANTUM PLASMA ♦ SPIN ♦ WHITE DWARF STARS
Abstract Dust magnetosonic waves are studied in degenerate dusty plasmas with spin and exchange correlation effects. Using the fluid equations of magnetoplasma with quantum corrections due to the Bohm potential, temperature degeneracy, spin magnetization energy, and exchange correlation, a generalized dispersion relation is derived. Spin effects are incorporated via spin force and macroscopic spin magnetization current. The exchange-correlation potentials are used, based on the adiabatic local-density approximation, and can be described as a function of the electron density. For three different values of angle, the dispersion relation is reduced to three different modes under the low frequency magnetohydrodynamic assumptions. It is found that the effects of quantum corrections in the presence of dust concentration significantly modify the dispersive properties of these modes. The results are useful for understanding numerous collective phenomena in quantum plasmas, such as those in compact astrophysical objects (e.g., the cores of white dwarf stars and giant planets) and in plasma-assisted nanotechnology (e.g., quantum diodes, quantum free-electron lasers, etc.)
ISSN 1070664X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-01-15
Publisher Place United States
Journal Physics of Plasmas
Volume Number 23
Issue Number 1


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