| Effect of Thermionic Emission on Dust-Acoustic Solitons in a Dust-Electron Plasma |
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| 引用本文： | 任丽文 王正汹 刘悦 王晓钢. Effect of Thermionic Emission on Dust-Acoustic Solitons in a Dust-Electron Plasma[J]. 中国物理快报, 2007, 24(3): 767-770 |
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| 作者姓名： | 任丽文 王正汹 刘悦 王晓钢 |
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| 作者单位： | State Key Laboratory of Materials Modification by Laser, Electron and Ion Beams Department of Physics, Dalian University of Technology, Dalian 116024 |
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| 基金项目： | Supported by the National Natural Science Foundation China under Grant Nos 40390150, 10175013, 10010760807, 10160420799, 40390155, 40228006 and 10575018. |
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| 摘 要： | ![]()
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| 关 键 词： | 热电子反射 孤立子 电子学 等离子体 |
| 收稿时间： | 2006-09-28 |
| 修稿时间： | 2006-09-28 |
Effect of Thermionic Emission on Dust-Acoustic Solitons in a Dust-Electron Plasma |
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| REN Li-Wen,WANG Zheng-Xiong,LIU Yue,WANG Xiao-Gang. Effect of Thermionic Emission on Dust-Acoustic Solitons in a Dust-Electron Plasma[J]. Chinese Physics Letters, 2007, 24(3): 767-770 |
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| Authors: | REN Li-Wen WANG Zheng-Xiong LIU Yue WANG Xiao-Gang |
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| Affiliation: | State Key Laboratory of Materials Modification by Laser, Electron and/on Beams Department of Physics, Dalian University of Technology, Dalian 116024 |
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| Abstract: | ![]()
The effects of thermionic emission on dust-acoustic solitons with a very small but finite amplitude in a dustelectron plasma are studied using the reductive perturbation technique. The self-consistent variation of dust charge is taken into account. It is shown that the thermionic emission could significantly increase the dust positive charge. The dependences of the phase velocity, amplitude, and width of such solitons on the dust temperature and the dust work function of dust material are plotted and discussed. |
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| Keywords: | 52.27.Lw 52.35.Fp 52.35.Sb |
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