CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2011, Vol. 28 ›› Issue (5): 767-772.

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Molecular Dynamics Simulation of Energetic Deposition on Pt(111) Surface with Oblique Ni Atom Bombardment

YAN Chao   

  1. Key Laboratory of Nondestructive Testing of Ministry of Education, School of Measuring and Optical Engineering, Nanchang Hangkong University, Nanchang 330063, China
  • Received:2010-11-18 Revised:2011-03-23 Online:2011-09-25 Published:2011-09-25

Abstract: Molecular dynamics simulation with embedded atom method is used to study energetic deposition on Pt(111)surface with Ni atoms at incident angles(θ)in a range of 0°to 80°(normal to the surface).Dependence of sputtering yields.adatom yields and vacancy yields on θ can be divided into throe different regions,θ≤20°,20°< θ < 60°,and θ≥60°respectively.As θ is smaller than 20°energetic deposition is similar to that at θ=0°.While 20° < θ < 60°,depth of projectile implantation decreases with incident angle.Distribution of adatoms is uniform,which contribute to uniformity of nucleation and layer-by.1ayer growth of film.As θ≥60°. energetic deposition has no obvious effect ou surface of Pt(111)substrate.

Key words: energetic deposition, molecular dynamics simulation, adatom, sputtering yields, vacancy yields

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