| Original Articles |
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Dust Lattice Waves of Dusty Plasma Chain with an External Magnetic Field |
| SUN Xiao-Xia 1,2;WANG Chun-Hua3;WANG Xiao-Gang 1,2,4 |
| 1State Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, School of Physics and Optoelectronic Technology Dalian University of Technology, Dalian 1160242College of Advanced Science and Technology, Dalian University of Technology, Dalian 1160243School of Sciences, Hefei University of Technology, Hefei 2300094School of Physics, Peking University, Beijing 100871 |
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| Cite this article: |
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SUN Xiao-Xia, WANG Chun-Hua, WANG Xiao-Gang 2007 Chin. Phys. Lett. 24 771-773 |
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Abstract Dust lattice waves of a one-dimensional plasma crystal chain with an external magnetic field are investigated. When the magnetic field is in the vertical direction (θ=0), perpendicular to the chain, the vertical transverse mode is not affected, while the horizontal transverse mode is coupled with the longitudinal mode. In the high frequency range, we obtain an `upper-hybrid' dust lattice mode and in the low frequency range, we obtain a `lower-hybrid' dust lattice mode. Between the two modes, a `gap' is formed. When the
magnetic field is oriented to the chain (θ=π/2), the longitudinal mode is not affected while both the horizontal and vertical transverse modes are shifted due to the effect of the magnetic field.
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| Keywords:
52.35.Fp
52.27.Lw
52.35.-g
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Received: 10 October 2006
Published: 08 February 2007
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| PACS: |
52.35.Fp
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(Electrostatic waves and oscillations (e.g., ion-acoustic waves))
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52.27.Lw
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(Dusty or complex plasmas; plasma crystals)
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52.35.-g
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(Waves, oscillations, and instabilities in plasmas and intense beams)
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