Effect of plasma absorption on dust lattice waves in hexagonal dust crystals |
| |
Affiliation: | 1. Department of Materials Science and Engineering, Nanchang University, Nanchang 330031, People's Republic of China;2. Jiangxi Province Key Laboratory of Fusion and Information Control, Nanchang 330031, People's Republic of China;3. Department of Science, Jiangxi University of Technology, Nanchang 330098, People's Republic of China;4. Department of Physics, Nanchang University, Nanchang 330031, People's Republic of China |
| |
Abstract: | In the present paper,the effect of plasma absorption on lattice waves in 2D hexagonal dust crystals is investigated.The dispersion relations with the effect of plasma absorption are derived.It is found that the temperature effect (electron-to-ion temperature ratio τ) enhances the frequency of the dust lattice waves,while the spatial effect (dimensionless Debye shielding parameter (κ)) weakens the frequency of the dust lattice waves.In addition,the system stabilities under the conditions of plasma absorption are studied.It is found that the temperature effect narrows the range of instability,while the spatial effect extends this range.And the range of instability is calculated,i.e.the system will always in the stable state regardless of the value of (κ) when τ > 3.5.However,the system will be unstable when τ =1 and (κ) > 4.1. |
| |
Keywords: | plasma absorption dust lattice waves hexagonal crystal |
本文献已被 CNKI 万方数据 等数据库收录! |
| 点击此处可从《等离子体科学和技术》浏览原始摘要信息 |
|
点击此处可从《等离子体科学和技术》下载全文 |
|