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Branching and resonant characteristics of surface plasma waves in a semi-bounded quantum plasma including spin-current effects

Title
Branching and resonant characteristics of surface plasma waves in a semi-bounded quantum plasma including spin-current effects
Author
정영대
Keywords
CHARGE
Issue Date
2018-05
Publisher
AMER INST PHYSICS
Citation
PHYSICS OF PLASMAS, v. 25, no. 5, Article no. 052106
Abstract
The dispersion relation for the waves propagating on the surface of a bounded quantum plasma with consideration of electron spin-current and ion-stream is derived and numerically investigated. We have found that one of the real parts of the wave frequency has the branching behavior beyond the instability domains. In such a region where the frequency branching occurs, the waves exhibit purely propagating mode. The resonant instability has also been investigated. We have found that when the phase velocity of the wave is close to the velocity of ion-stream the wave becomes unstable. However, the resonant growth rate is remarkably reduced by the effect of electron spin-current. The growth rate is also decreased by either the reduction of ion-stream velocity or the increase in quantum wavelength. Thus, the quantum effect in terms of the quantum wave number is found to suppress the resonant instability. It is also found that the increase in Fermi energy can reduce the growth rate of the resonant wave in the quantum plasma. Published by AIP Publishing.
URI
https://aip.scitation.org/doi/10.1063/1.5029400http://repository.hanyang.ac.kr/handle/20.500.11754/118697
ISSN
1070-664X; 1089-7674
DOI
10.1063/1.5029400
Appears in Collections:
GRADUATE SCHOOL[S](대학원) > BIONANOTECHNOLOGY(바이오나노학과) > Articles
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