Negative Dispersion of Lattice Waves in a Two-Dimensional Yukawa
System
LIU Yan-Hong, LIU Bin, YANG Si-Ze, WANG Long
Institute of Physics, Chinese Academy of Sciences, Beijing
100080
Negative Dispersion of Lattice Waves in a Two-Dimensional Yukawa
System
LIU Yan-Hong;LIU Bin;YANG Si-Ze;WANG Long
Institute of Physics, Chinese Academy of Sciences, Beijing
100080
关键词 ：
82.70.Dd ,
52.25.Vy
Abstract ： Collective motion modes existing in a two-dimensional Yukawa system are investigated by molecular dynamics simulation. The dispersion relations of transverse and longitudinal lattice waves obtained for hexagonal lattice are in agreement with the theoretical results. The negative dispersion of the parallel longitudinal wave is demonstrated by the simulation, and is explained by a physical model.
Key words ：
82.70.Dd
52.25.Vy
出版日期: 2002-08-01
引用本文:
LIU Yan-Hong;LIU Bin;YANG Si-Ze;WANG Long. Negative Dispersion of Lattice Waves in a Two-Dimensional Yukawa
System[J]. 中国物理快报, 2002, 19(8): 1207-1210.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2002/V19/I8/1207
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