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Motion and friction of carbon nanotubes with vacancy defects or Stone-Thower-Wales (STW) defects on them are investigated in commensurate states and incommensurate states by molecular dynamics simulation. Results show that defects lead to incommensurate state in part of interfaces, thus decreasing the friction. More amount of STW defects would cause larger distortion of carbon nanotube, smaller lateral force amplitude, more local incommensurate state of interfaces and smaller friction. The friction of carbon nanotube with vacancy defects is obviously larger than carbon nanotube with STW defects. The reason is that the carbon nanotube with vacancy defects will change its motion in later period of motion, which can increase energy dissipation. Defects barely have influence on the friction of carbon nanotubes in incommensurate state because interfaces are all in incommensurate state whether they are having defects or not.
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Keywords:
- carbon nanotube /
- defects /
- friction
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[14] Feng D L, Feng Y H, Chen Y, Li W, Zhang X X 2013 Chin. Phys. B 22 016501
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[19] Liu P, Zhang Y W 2011 Carbon 49 3687
[20] Zhou L G, Shi S Q 2003 Carbon 41 613
[21] Ijas M, Havu P, Harju A 2013 Phys. Rev. B 87 205430
[22] Yang S H, Yu S Y, Cho M 2013 Carbon 55 133
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[1] Scarselli M, Castrucci P, De Crescenzi M 2012 Phys. Condes. Matter. 24 313202
[2] Liew K M, Wong C H, He X Q, Tan M J, Meguid S A 2004 Phys. Rev. B 69 115429
[3] Jie H, Globus A, Jaffe R, Deardorff G 1997 Nanotechnology 8(3) 95
[4] Novoselov K S, Geim A K, Morozov S V, Jiang D, Zhang Y, Dubonos S V, Grigorieva I V, Filrsov A A 2004 Science 306 666
[5] Chen X, Zhu J, Xi Q, Yang W S 2012 Sens. Actuator B-Chem. 161 648
[6] Yu D S, Dai L M 2010 Phys. Chem. Lett. 1 467
[7] Falvo M R, Taylor R M, Helser A, Chi V, Brooks F P, Jr. Washburn S, Superfine R 1999 Nature 397 236
[8] Buldum A, Lu J P 1999 Phys. Rev. Lett. 83 5050
[9] Buldum A, Lu J P 2003 Appl. Surf. Sci. 219 123
[10] Schall J D, Brenner D W 2000 Mol. Simul. 25 73
[11] Li R, Hu Y Z, Wang H, Zhang Y J 2006 Acta Phys. Sin. 55 5455 ( in Chinese) [李瑞, 胡元中, 王慧, 张宇军 2006 55 5455]
[12] Li W Z, Yan X, Kempa K, Ren Z F, Giersig M 2007 Carbon 45 2938
[13] Luo Y P, Tien L G, Tsai C H, Lee M H, Li F Y 2011 Chin. Phys. B 20 017302
[14] Feng D L, Feng Y H, Chen Y, Li W, Zhang X X 2013 Chin. Phys. B 22 016501
[15] Troya D, Mielke S L, Schatz G C 2003 Chem. Phys. Lett. 382 133
[16] Jiang H, Feng X Q, Huang Y, Hwang K C, Wu P D 2004 Comput. Methods Appl. Mech. Eng. 193 3419
[17] Lee N J, Welch C R 2010 DoD High Performance Computing Modernization Program Users Group Conference Schaumburg, IL, USA, June 14-17, 2010 p238
[18] Liu P, Zhang Y W 2010 J. Phys. D: Appl. Phys. 43 1
[19] Liu P, Zhang Y W 2011 Carbon 49 3687
[20] Zhou L G, Shi S Q 2003 Carbon 41 613
[21] Ijas M, Havu P, Harju A 2013 Phys. Rev. B 87 205430
[22] Yang S H, Yu S Y, Cho M 2013 Carbon 55 133
[23] Brenner D W, Shenderova O A, Harrison J A, Stuart S J, Ni B, Sinnott S B 2002 J. Phys. Condes. Matter. 14 783
[24] Ruoff R S, Hickman A P 1993 J. Phys. Chem. 97 2494
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