| Effects of Dipole Moment on the Lattice Waves in One-Dimensional Dust Chain |
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| 作者姓名： | 王春华 王晓钢 |
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| 作者单位： | 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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| 基金项目： | Supported by the National Natural Science Fonndation of China Grant Nos 10175013 and 10010760807, |
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| 摘 要： | 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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| 关 键 词： | 偶极矩 晶格波 一维微粒链 晶体学 |
| 收稿时间： | 2005-09-26 |
| 修稿时间： | 2005-09-26 |
Effects of Dipole Moment on the Lattice Waves in One-Dimensional Dust Chain |
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| WANG Chun-Hua, WANG Xiao-Gang.Effects of Dipole Moment on the Lattice Waves in One-Dimensional Dust Chain[J].Chinese Physics Letters,2006,23(2):403-406. |
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| Authors: | WANG Chun-Hua WANG Xiao-Gang |
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