作者: A. Tripathi , S.A. Khan , Manvendra Kumar , V. Baranwal , R. Krishna
DOI: 10.1016/J.NIMB.2008.01.032
关键词: Highly oriented pyrolytic graphite 、 Atomic physics 、 Jet (fluid) 、 Yield (engineering) 、 Amorphous carbon 、 Sputtering 、 Materials science 、 Anisotropy 、 Crystal structure 、 Ion beam 、 Analytical chemistry
摘要: Abstract We have studied the angular distribution of 120 MeV Au ion beam induced sputtering yield for three cases: from crystalline highly oriented pyrolytic graphite (HOPG) (A) normal and (B) 70° incidence (C) amorphous carbon sample incidence. An anisotropic is observed HOPG samples with a Y = A cos n θ + B exp[−( − μ ) 2 σ ]. Though over-cosine function dependence all cases, anomalous peak at 53° found to shift 73° when tilted by 20°. No in which further confirms that anisotropy due crystal structure formation pressure pulse. The high exponent ( = 3.2–3.8) signifies intense pulse jet like sputtering.