Orientation dependence of near-threshold damage production by electron irradiation of 4H SiC and diamond and outward migration of defects

作者: J.W. Steeds

DOI: 10.1016/J.NIMB.2010.12.029

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摘要: Abstract Low temperature photoluminescence measurements have been made on samples of 4H SiC and diamond irradiated in different crystallographic directions with electrons having energies close to the atomic displacement thresholds. The defects produced are found show some differences from those predicted by molecular dynamics calculations possible reasons for discussed. discussion refers results earlier as well new experiments outward migration during irradiation. energy dependence damage introduced into , oriented evaluated shown be consistent theory.

参考文章(18)
T. A. G. Eberlein, R. Jones, S. Öberg, P. R. Briddon, Density functional theory calculation of the DI optical center in SiC Physical Review B. ,vol. 74, pp. 144106- ,(2006) , 10.1103/PHYSREVB.74.144106
J.W Steeds, T.J Davis, S.J Charles, J.M Hayes, J.E Butler, 3H luminescence in electron-irradiated diamond samples and its relationship to self-interstitials Diamond and Related Materials. ,vol. 8, pp. 1847- 1852 ,(1999) , 10.1016/S0925-9635(99)00144-2
F. Gao, W. J. Weber, Recovery of close Frenkel pairs produced by low energy recoils in SiC Journal of Applied Physics. ,vol. 94, pp. 4348- 4356 ,(2003) , 10.1063/1.1605254
T. A. G. Eberlein, C. J. Fall, R. Jones, P. R. Briddon, S. Öberg, Alphabet luminescence lines in 4H-SiC Physical Review B. ,vol. 65, pp. 184108- ,(2002) , 10.1103/PHYSREVB.65.184108
R Devanathan, W.J Weber, Displacement energy surface in 3C and 6H SiC Journal of Nuclear Materials. ,vol. 278, pp. 258- 265 ,(2000) , 10.1016/S0022-3115(99)00266-4
Michel Bockstedte, Alexander Mattausch, Oleg Pankratov, Ab initio study of the migration of intrinsic defects in 3 C − SiC Physical Review B. ,vol. 68, pp. 205201- ,(2003) , 10.1103/PHYSREVB.68.205201
J W Steeds, W Sullivan, A Wotherspoon, J M Hayes, Long-range migration of intrinsic defects during irradiation or implantation Journal of Physics: Condensed Matter. ,vol. 21, pp. 364219- ,(2009) , 10.1088/0953-8984/21/36/364219
T. Umeda, J. Isoya, N. Morishita, T. Ohshima, T. Kamiya, EPR identification of two types of carbon vacancies in 4H-SiC Physical Review B. ,vol. 69, pp. 121201- ,(2004) , 10.1103/PHYSREVB.69.121201
Fei Gao, Haiyan Xiao, Xiaotao Zu, Matthias Posselt, William J. Weber, Defect-enhanced charge transfer by ion-solid interactions in SiC using large-scale ab initio molecular dynamics simulations. Physical Review Letters. ,vol. 103, pp. 027405- ,(2009) , 10.1103/PHYSREVLETT.103.027405