Quantum dust magnetosonic waves with spin and exchange correlation effects

Journal Article · Fri Jan 15 00:00:00 EST 2016 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4939807· OSTI ID:22493868

Maroof, R.; Qamar, A. ^[1]; Mushtaq, A. ^[2]

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1. Department of Physics, University of Peshawar, Peshawar 25000 (Pakistan)
2. Department of Physics, Abdul Wali Khan University, Mardan 23200 (Pakistan)

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.)

• OSTI ID: 22493868
• Journal Information: Physics of Plasmas, Vol. 23, Issue 1; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
70 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