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Molecular dynamics simulation is applied to the investigation of the isotopic effects during a hydrogen isotope atom bombarding the crystalline graphite containing four graphene sheets. Both Brenner's reactive empirical bond order potential and Ito's interlayer intermolecular potential are adopted to represent `àBAB" stacking of graphite. The simulation results reveal that the mass of the incident species has a big influence on the absorption on and the reflection from the upside graphite surface, the peaks of which shift toward higher end side of incident energy as the mass increases. The absorption coefficient of the incident tritium is large, compared with that of the incident either hydrogen or deuterium. To penetrate the four- sheet graphite at some striking locations, deuterium and tritium need more kinetic energy. It is found that both the mass and the incident energy of the incident species affect the energy transfer to background substrate. These results would be important for understanding 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] Janeschitz G, Borrass K, Federici G, Igitkhanov Y, Kukushkin M,Pacher H D, Pacher GW, Sugihara M 1995 J. Nucl. Mater. 220 73
[4] 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]
[5] Tanabe T, Masaki K, Sugiyama K, Yoshida M 2009 Phys. Scr.T138 014006
[6] Alimov V Kh, Roth J 2007 Phys. Scr. T128 6
[7] Salonen S, Nordlund K, Keinonen J, Wu C H 2001 Phys. Rev. B63 195415
[8] Sun J Z, Li S Y, Stirner T, Chen J L,Wang D Z 2010 J. Appl. Phys.107 113533
[9] Mech B V, Haasz A A, Davis J W 1998 J. Nucl. Mater. 255 153
[10] Wang Z X, Yu G Q, Ruan M L, Zhu F Y, Zhu D Z, Pan H C, Xu HJ 2000 Acta Phys. Sin. 49 1524 (in Chinese) [王震遐, 俞国庆, 阮美龄, 朱福英,朱德彰, 潘浩昌, 徐洪杰 2000 49 1524]
[11] Hu X J, Dai Y B, He Y X, Shen H S, Li R B 2001 Acta Phys. Sin.51 1388 (in Chinese) [胡晓君,戴永兵, 何贤昶, 沈荷生, 李荣斌 2001 51 1388]
[12] 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]
[13] Ito A, Nakamura H 2008 Commun. Comput. Phys. 4 592
[14] Ito A, Nakamura H 2006 J. Plasma Phys. 72 805
[15] Ito A, Nakamura H, Takayama A 2007 arXiv: 0703377 [condmat]
[16] Ito A, Wang Y, Irle S, Morokuma K, Nakamura H 2009 J. Nucl.Mater. 390 183
[17] Salonen S, Nordlund K, Keinonen J,Wu C H 2001 J. Nucl. Mater.290 144
[18] Marian J, Zepeda-Ruiz L A, Couto N, Bringa E M, Gilmer G H,Stangeby P C, Rognlien T D 2007 J. Appl. Phys. 101 044506
[19] Li S Y, Sun J Z, Zhang Z H, Liu S G, Wang D Z 2011 Acta Phys.Sin. 60 057901 (in Chinese) [李守阳,孙继忠, 张治海, 刘升光, 王德真 2011 60 057901]item Zhang Z H, Sun J Z, Liu S G, Wang D Z 2012
[20] Zhang Z H, Sun J Z, Liu S G, Wang D Z 2012 Acta Phys. Sin. 61047901 (in Chinese) [张治海,孙继忠, 刘升光, 王德真 2012 61 047901]
[21] Brenner D W, Shenderova O A, Harrison J A, Stuart S J, Ni B,Sinnott S B 2002 J. Phys. Cond. Matter 14 783
[22] Tersoff J 1989 Phys. Rev. B 39 5566
[23] Linhard J, Scharff M 1961 Phys. Rev. 124 128
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[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] Janeschitz G, Borrass K, Federici G, Igitkhanov Y, Kukushkin M,Pacher H D, Pacher GW, Sugihara M 1995 J. Nucl. Mater. 220 73
[4] 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]
[5] Tanabe T, Masaki K, Sugiyama K, Yoshida M 2009 Phys. Scr.T138 014006
[6] Alimov V Kh, Roth J 2007 Phys. Scr. T128 6
[7] Salonen S, Nordlund K, Keinonen J, Wu C H 2001 Phys. Rev. B63 195415
[8] Sun J Z, Li S Y, Stirner T, Chen J L,Wang D Z 2010 J. Appl. Phys.107 113533
[9] Mech B V, Haasz A A, Davis J W 1998 J. Nucl. Mater. 255 153
[10] Wang Z X, Yu G Q, Ruan M L, Zhu F Y, Zhu D Z, Pan H C, Xu HJ 2000 Acta Phys. Sin. 49 1524 (in Chinese) [王震遐, 俞国庆, 阮美龄, 朱福英,朱德彰, 潘浩昌, 徐洪杰 2000 49 1524]
[11] Hu X J, Dai Y B, He Y X, Shen H S, Li R B 2001 Acta Phys. Sin.51 1388 (in Chinese) [胡晓君,戴永兵, 何贤昶, 沈荷生, 李荣斌 2001 51 1388]
[12] 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]
[13] Ito A, Nakamura H 2008 Commun. Comput. Phys. 4 592
[14] Ito A, Nakamura H 2006 J. Plasma Phys. 72 805
[15] Ito A, Nakamura H, Takayama A 2007 arXiv: 0703377 [condmat]
[16] Ito A, Wang Y, Irle S, Morokuma K, Nakamura H 2009 J. Nucl.Mater. 390 183
[17] Salonen S, Nordlund K, Keinonen J,Wu C H 2001 J. Nucl. Mater.290 144
[18] Marian J, Zepeda-Ruiz L A, Couto N, Bringa E M, Gilmer G H,Stangeby P C, Rognlien T D 2007 J. Appl. Phys. 101 044506
[19] Li S Y, Sun J Z, Zhang Z H, Liu S G, Wang D Z 2011 Acta Phys.Sin. 60 057901 (in Chinese) [李守阳,孙继忠, 张治海, 刘升光, 王德真 2011 60 057901]item Zhang Z H, Sun J Z, Liu S G, Wang D Z 2012
[20] Zhang Z H, Sun J Z, Liu S G, Wang D Z 2012 Acta Phys. Sin. 61047901 (in Chinese) [张治海,孙继忠, 刘升光, 王德真 2012 61 047901]
[21] Brenner D W, Shenderova O A, Harrison J A, Stuart S J, Ni B,Sinnott S B 2002 J. Phys. Cond. Matter 14 783
[22] Tersoff J 1989 Phys. Rev. B 39 5566
[23] Linhard J, Scharff M 1961 Phys. Rev. 124 128
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