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Characteristics of the surface plasma wave in a self-gravitating magnetized dusty plasma slab

Title
Characteristics of the surface plasma wave in a self-gravitating magnetized dusty plasma slab
Author
정영대
Keywords
KINETIC-THEORY; FIELD
Issue Date
2015-11
Publisher
AMER INST PHYSICS
Citation
PHYSICS OF PLASMAS, v. 22, NO 11, Page. 37071-37075
Abstract
The dispersion properties of surface dust ion-acoustic waves in a self-gravitating magnetized dusty plasma slab are investigated. The dispersion relation is derived by using the low-frequency magnetized dusty dielectric function and the surface wave dispersion integral for the slab geometry. We find that the self-gravitating effect suppresses the frequency of surface dust ion-acoustic wave for the symmetric mode in the long wavelength regime, whereas it hardly changes the frequency for the anti-symmetric mode. As the slab thickness and the wave number increase, the surface wave frequency slowly decreases for the symmetric mode but increases significantly for the anti-symmetric mode. The influence of external magnetic field is also investigated in the case of symmetric mode. We find that the strength of the magnetic field enhances the frequency of the symmetric-mode of the surface plasma wave. The increase of magnetic field reduces the self-gravitational effect and thus the self-gravitating collapse may be suppressed and the stability of dusty objects in space is enhanced. (C) 2015 AIP Publishing LLC.
URI
http://aip.scitation.org/doi/10.1063/1.4936325http://hdl.handle.net/20.500.11754/28697
ISSN
1070-664X; 1089-7674
DOI
10.1063/1.4936325
Appears in Collections:
GRADUATE SCHOOL[S](대학원) > BIONANOTECHNOLOGY(바이오나노학과) > Articles
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