Effect of the number of defect particles on the structure and dispersion relation of a two-dimensional dust lattice system
Rangyue Zhang(张壤月)1, Guannan Shi(史冠男)2, Hanyu Tang(唐瀚宇)1, Yang Liu(刘阳)1, Yanhong Liu(刘艳红)3, and Feng Huang(黄峰)1,†
1 College of Science, China Agricultural University, Beijing 100083, China; 2 College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China; 3 School of Physics and Optoelectronic Engineering, Ludong University, Yantai 264025, China
Abstract The effect of the number of defect particles on the structure and dispersion relations of a two-dimensional (2D) dust lattice is studied by molecular dynamics (MD) simulation. The dust lattice structures are characterized by particle distribution, nearest neighbor configuration and pair correlation function. The current autocorrelation function, the dispersion relation and sound speed are used to represent the wave properties. The wave propagation of the dust lattice closely relates to the lattice structure. It shows that the number of defect particles can affect the dust lattice local structure and then affect the dispersion relations of waves propagating in it. The presence of defect particles has a greater effect on the transverse waves than on the longitudinal waves of the dust lattice. The appropriate number of defect particles can weaken the anisotropy property of the lattice.
Rangyue Zhang(张壤月), Guannan Shi(史冠男), Hanyu Tang(唐瀚宇), Yang Liu(刘阳), Yanhong Liu(刘艳红), and Feng Huang(黄峰) Effect of the number of defect particles on the structure and dispersion relation of a two-dimensional dust lattice system 2022 Chin. Phys. B 31 035204
[1] Bonitz M, Filinov V S, Fortov V E, Levashov P R and Fehske H 2005 Phys. Rev. Lett.95 235006 [2] Yang X F, Wang X G and Liu Y 2009 Chin. Phys. B18 4938 [3] Farokhi B 2013 J. Plasma. Phys.79 629 [4] Shahmansouri M and Farokhi B 2012 J. Plasma. Phys.78 259 [5] Caplan M E 2020 Phys. Rev. E101 023201 [6] Schella A, Mulsow M, Melzer A, Hählert H, Block D, Ludwig P and Bonitz M 2013 New. J. Phys.15 113021 [7] Melzer A, Homann A and Piel A 1996 Phys. Rev. E53 2757 [8] Thomas H M and Morfill G E 1996 Nature379 806 [9] Melzer A, Schweigert V A, Schweigert I V, Homann A, Peters S and Piel A 1996 Phys. Rev. E54 R46 [10] Sun X X, Wang C H and Wang X G 2007 Chin. Phys. Lett.24 771 [11] Couëdel L, Zhdanov S K, Ivlev A V, Nosenko V, Thomas H M and Morfill G E 2011 Phys. Plasmas18 083707 [12] Pieper J B and Goree J 1996 Phys. Rev. Lett.77 3137 [13] Peters S, Homann A, Melzer A and Piel A 1996 Phys. Lett. A223 389 [14] Thompson C, Barkan A, Angelo N D' and Merlino R L 1997 Phys. Plasmas4 2331 [15] Li F and Havnes O 2001 Phys. Rev. E64 066407 [16] Goree J 1994 Plasma. Sources. Sci. T3 400 [17] Draine B T and Salpeter E E 1979 Astrophys. J.231 77 [18] Havnes O, Morfill G E and Goertz C K 1984 J. Geophys. Res.89 10999 [19] Slattery W L, Doolen G D and DeWitt H E 1980 Phys. Rev. A21 2087 [20] Ichimaru S 1982 Rev. Mod. Phys.54 1017 [21] Röcker T, Ivlev A, Zhdanov S and Morfill G 2014 Phys. Rev. E89 13104 [22] Huang X M, Wang C H and Sun X X 2015 Journal of Hefei University of Technology (Natural Science)38 569 [23] Morfill G E, Thomas H M, Konopka U M, Rothermel H M, Zuzic M M, Ivlev A M and Goree J M 1999 Phys. Rev. Lett.83 1598 [24] Quinn T M, Crowley T J and Taylor F 1996 Geophys. Res. Lett.23 3413 [25] Schmidt P, Zwicknagel G, Reinhard P G and Toepffer C 1997 Phys. Rev. E56 7310 [26] Ohta H and Hamaguchi S 2000 Phys. Plasmas7 4506 [27] Ohta H and Hamaguchi S 2000 Phys. Rev. Lett.84 6026 [28] Liang Z X, Xi D, Zhang Z D and Wu B 2008 Phys. Rev. A78 023622 [29] Wieben F and Block D 2019 Phys. Rev. Lett.123 225001 [30] Farokhi B, Kourakis I and Shukla P K 2006 Phys. Lett. A355 122 [31] Liu Y, Liu B, Chen Y, Yang S Z, Long W and Wang X 2003 Phys. Rev. E67 066408
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
