| Original Articles |
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Effects of Dipole Moment on the Lattice Waves in One-Dimensional Dust Chain |
| WANG Chun-Hua;WANG Xiao-Gang |
| State Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Department of Physics,
and College of Advanced Science and Technology, Dalian University of Technology, Dalian 116024 |
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| Cite this article: |
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WANG Chun-Hua, WANG Xiao-Gang 2006 Chin. Phys. Lett. 23 403-406 |
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Abstract Effects of dipole moment on the horizontal dust lattice waves in one-dimensional dust chain are investigated. The general dispersion relations are derived. The waves are sensitive to the direction of the dipole moment, which has an angle θ (0≤θ≤π) with respect to the vertical direction.
When the waves are self-excited, it is shown that the real part of frequency for longitudinal wave is increased, while it is decreased for the horizontal transverse wave with increasing θ. When the waves are externally exited, both the real and imaginary parts of wave number are decreased for the longitudinal and transverse waves with increasing θ.
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| Keywords:
52.35.Fp
52.27.Lw
52.35.-g
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Published: 01 February 2006
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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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