Angular dependence of electronic sputtering from HOPG

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 graphiteAtomic physicsJet (fluid)Yield (engineering)Amorphous carbonSputteringMaterials scienceAnisotropyCrystal structureIon beamAnalytical 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.

参考文章(23)
R. E. Johnson, B. U. R. Sundqvist, A. Hedin, D. Fenyö, Sputtering by fast ions based on a sum of impulses Physical Review B. ,vol. 40, pp. 49- 53 ,(1989) , 10.1103/PHYSREVB.40.49
Z G Wang, C Dufour, E Paumier, M Toulemonde, The Se sensitivity of metals under swift-heavy-ion irradiation: a transient thermal process Journal of Physics: Condensed Matter. ,vol. 6, pp. 6733- 6750 ,(1994) , 10.1088/0953-8984/6/34/006
A Tripathi, SA Khan, SK Srivastava, M Kumar, S Kumar, SVSN Rao, GBVS Lakshmi, Azhar M Siddiqui, N Bajwa, HS Nagaraja, VK Mittal, A Szokefalvi, M Kurth, AC Pandey, DK Avasthi, HD Carstanjen, None, Electronic sputtering from HOPG: A study of angular dependence Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 212, pp. 402- 406 ,(2003) , 10.1016/S0168-583X(03)01742-7
H. Trinkaus, A. I. Ryazanov, VISCOELASTIC MODEL FOR THE PLASTIC FLOW OF AMORPHOUS SOLIDS UNDER ENERGETIC ION BOMBARDMENT Physical Review Letters. ,vol. 74, pp. 5072- 5075 ,(1995) , 10.1103/PHYSREVLETT.74.5072
S. Ghosh, D.K. Avasthi, T. Som, A. Tripathi, D. Kabiraj, A. Ingale, S. Mishra, V. Ganesan, S. Zhang, X. Hong, Structure dependent electronic sputtering of a-C:H films by swift heavy ions Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 190, pp. 164- 168 ,(2002) , 10.1016/S0168-583X(01)01197-1
M. Toulemonde, Ch. Dufour, A. Meftah, E. Paumier, Transient thermal processes in heavy ion irradiation of crystalline inorganic insulators Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 166, pp. 903- 912 ,(2000) , 10.1016/S0168-583X(99)00799-5
R. L. Fleischer, P. B. Price, R. M. Walker, E. L. Hubbard, Criterion for Registration in Dielectric Track Detectors Physical Review. ,vol. 156, pp. 353- 355 ,(1967) , 10.1103/PHYSREV.156.353
P. Stampfli, K. H. Bennemann, Theory for the laser-induced femtosecond phase transition of silicon and GaAS Applied Physics A. ,vol. 60, pp. 191- 196 ,(1995) , 10.1007/BF01538245
S. Ghosh, Alka Ingale, T. Som, D. Kabiraj, A. Tripathi, S. Mishra, S. Zhang, X. Hong, D.K. Avasthi, Structural effect on electronic sputtering of hydrogenated amorphous carbon films Solid State Communications. ,vol. 120, pp. 445- 450 ,(2001) , 10.1016/S0038-1098(01)00426-4
H. M. Urbassek, H. Kafemann, R. E. Johnson, Atom ejection from a fast-ion track: A molecular-dynamics study Physical Review B. ,vol. 49, pp. 786- 795 ,(1994) , 10.1103/PHYSREVB.49.786