| Vibrational Mode in Two-Dimensional Dust Monolayer with Finite Size Dust Grains |
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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, College of Advanced Science and Technology, Dalian University of Technology, Dalian 116024, China |
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| 基金项目： | supported by National Natural Science Foundation of China （Nos. 10175013, 10010760807） |
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| 摘 要： |
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| 关 键 词： | 振动模式 偶极矩 有限尺寸 宇宙尘粒 |
| 收稿时间： | 2005-08-29 |
| 修稿时间： | 2005-08-29 |
Vibrational Mode in Two-Dimensional Dust Monolayer with Finite Size Dust Grains |
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| WANG Chunhua, WANG Xiaogang.Vibrational Mode in Two-Dimensional Dust Monolayer with Finite Size Dust Grains[J].Plasma Science & Technology,2006,8(4):422-424. |
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| Authors: | WANG Chunhua WANG Xiaogang |
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| Affiliation: | State Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Department of Physics, College of Advanced Science and Technology, Dalian University of Technology, Dalian 116024, China |
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| Abstract: | Vibrational mode in a two-dimensional dust monolayer is investigated by considering the finite size of dust grains. Each dust grain is assumed to be a negative point charge and a dipole moment due to the inhomogeneous charge distribution on its surface. The dispersion relation of the vibrational mode is derived. Both the self-excited and externally excited cases are discussed. It is shown that the mode is sensitive to the direction of the dipole moment. |
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| Keywords: | vibrational mode dust monolayer dipole moment |
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