-
Molecular dynamics simulation is applied to the investigation of energy exchanges between single hydrogen and graphite (001). In addition to energy transfer efficiency, in this paper we analyse various kinds of possible processes, which are the absorption on the upside graphite surface, reflection, absorption on the downside graphite surface and penetration, during the course of a hydrogen atom bombarding the crystalline graphite containing four graphene sheets. The simulation results show that the interlayer interaction has a big influence on the reflection, especially when the incident energy is larger than 20.0 eV. The reflection coefficient increases evidently compared with that in single graphene sheet case. If the incident hydrogen has a kinetic energy more than 25.0 eV, it can penetrate the four- sheet graphite at some striking locations. When the incident energy is larger than 28.0 eV, the energy transferring to the first graphene sheet is more than to the second graphene sheet. These results will be helpful for understanding the chemical erosion of carbon based materials and the tritium retention occurring in fusion devices.
[1] Roth J, Garcia-Rosales C 1996 Nucl. Fusion 36 1647
[2] Liu S G, Sun J Z, Dai S Y, Stirner T,Wang D Z 2010 J. Appl. Phys. 108 073302
[3] Alimov V Kh, Roth 2007 J. Phys. Scr T128 6
[4] Janeschitz G, Borrass K, Federici G, Igitkhanov Y, Kukushkin M, Pacher H D, Pacher GW, Sugihara M 1995 J. Nucl. Mater. 220 73
[5] Li Q C, Zheng Y Z, Cheng F Y, Deng X B, Deng D S, You P L, Liu G A, Chen X D 2001 Acta Phys. Sin. 50 507 (in Chinese) [李齐良, 郑永真, 程发银, 邓小波, 邓冬生, 游佩林, 刘贵昂, 陈向东 2001 50 507]
[6] MölerW, EcksteinW, Biersack J P 1988 Comput. Phys. Commun. 51 355
[7] Biersack J P, Haggmark L G 1980 Nucl. Instr. and Meth 174 257
[8] Jacob J, Hopf C 2005 J. Nucl. Mater. 342 141
[9] Schneider R, Rai A, Mutzke A, Warrier M, Salonen E, Nordlund K 2007 J. Nucl. Mater. 367 1238
[10] Salonen S, Nordlund K, Keinonen J, Wu C H 2001 Phys. Rev. B 63 195415
[11] Sun J Z, Li S Y, Stirner T, Chen J L,Wang D Z 2010 J. Appl. Phys. 107 113533
[12] Mech B V, Haasz A A, Davis J W 1998 J. Nucl. Mater. 255 153
[13] 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]
[14] Ito A, Nakamura H 2008 Commun. Comput. Phys. 4 592
[15] Ito A, Nakamura H 2006 J. Plasma Phys. 72 805
[16] Ito A, Nakamura H, Takayama A arXiv: 0703377 [cond-mat]
[17] Ito A, Wang Y, Irle S, Morokuma K, Nakamura H 2009 J. Nucl. Mater. 390 183
[18] Li S Y, Sun J Z, Zhang Z H, Liu S G, Wang D Z 2011 Acta Phys. Sin. accepted (in Chinese) [李守阳, 孙继忠, 张治海, 刘升光, 王德真 2011 (已接收)]
[19] Brenner D W, Shenderova O A, Harrison J A, Stuart S J, Ni B, Sinnott S B 2002 J. Phys. Cond. Matter 14 783
-
[1] Roth J, Garcia-Rosales C 1996 Nucl. Fusion 36 1647
[2] Liu S G, Sun J Z, Dai S Y, Stirner T,Wang D Z 2010 J. Appl. Phys. 108 073302
[3] Alimov V Kh, Roth 2007 J. Phys. Scr T128 6
[4] Janeschitz G, Borrass K, Federici G, Igitkhanov Y, Kukushkin M, Pacher H D, Pacher GW, Sugihara M 1995 J. Nucl. Mater. 220 73
[5] Li Q C, Zheng Y Z, Cheng F Y, Deng X B, Deng D S, You P L, Liu G A, Chen X D 2001 Acta Phys. Sin. 50 507 (in Chinese) [李齐良, 郑永真, 程发银, 邓小波, 邓冬生, 游佩林, 刘贵昂, 陈向东 2001 50 507]
[6] MölerW, EcksteinW, Biersack J P 1988 Comput. Phys. Commun. 51 355
[7] Biersack J P, Haggmark L G 1980 Nucl. Instr. and Meth 174 257
[8] Jacob J, Hopf C 2005 J. Nucl. Mater. 342 141
[9] Schneider R, Rai A, Mutzke A, Warrier M, Salonen E, Nordlund K 2007 J. Nucl. Mater. 367 1238
[10] Salonen S, Nordlund K, Keinonen J, Wu C H 2001 Phys. Rev. B 63 195415
[11] Sun J Z, Li S Y, Stirner T, Chen J L,Wang D Z 2010 J. Appl. Phys. 107 113533
[12] Mech B V, Haasz A A, Davis J W 1998 J. Nucl. Mater. 255 153
[13] 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]
[14] Ito A, Nakamura H 2008 Commun. Comput. Phys. 4 592
[15] Ito A, Nakamura H 2006 J. Plasma Phys. 72 805
[16] Ito A, Nakamura H, Takayama A arXiv: 0703377 [cond-mat]
[17] Ito A, Wang Y, Irle S, Morokuma K, Nakamura H 2009 J. Nucl. Mater. 390 183
[18] Li S Y, Sun J Z, Zhang Z H, Liu S G, Wang D Z 2011 Acta Phys. Sin. accepted (in Chinese) [李守阳, 孙继忠, 张治海, 刘升光, 王德真 2011 (已接收)]
[19] Brenner D W, Shenderova O A, Harrison J A, Stuart S J, Ni B, Sinnott S B 2002 J. Phys. Cond. Matter 14 783
计量
- 文章访问数: 7139
- PDF下载量: 401
- 被引次数: 0
下载:
