Dust charge effects on the resonant instability of the dust-acoustic wave in a semibounded dusty plasma

Journal Article · Wed Nov 01 04:00:00 EST 2006 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.2372414· OSTI ID:20884812

Kim, Hwa-Min; Jung, Young-Dae ^[1]

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1. Department of Electronics Engineering, Catholic University of Daegu, Hayang, Gyongsan, Gyungbuk 712-702 (Korea, Republic of)

The resonant instability of the surface dust-acoustic wave is investigated in a semibounded dusty plasma containing elongated and rotating dust grains. The temporal growth rate of the surface dust-acoustic instability is obtained by the plasma dielectric function with the specular reflection boundary condition. The results show that the domain of the instability increases with increase in the wave number, especially for the case of the negatively charged dust grains. It is also found that the growth rate of the instability with negatively charged dust grains is found to be smaller than that with positively charged dust grains. In addition, it is found that the growth rate decreases with increasing the ratio of the dust plasma frequency to the rotation frequency.

• OSTI ID: 20884812
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 9 Vol. 100; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BOUNDARY CONDITIONS
BOUNDARY LAYERS
CRYSTAL GROWTH
DIELECTRIC MATERIALS
DIELECTRIC PROPERTIES
DUSTS
ION ACOUSTIC WAVES
LANGMUIR FREQUENCY
PLASMA
PLASMA INSTABILITY
SOUND WAVES