Simulation studies on sputtering in rough surface

Autor: Takahiro Kenmotsu, N. Hirotani, Yasunori Yamamura, Tetsuya Muramoto
Rok vydání: 2005
Předmět:
Zdroj: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 228:369-372
ISSN: 0168-583X
DOI: 10.1016/j.nimb.2004.10.072
Popis: The influence of a surface roughness on sputtering is studied using a Monte Carlo simulation code ACAT. In order to estimate this influence in ACAT calculation, the ACAT code is modified. The two-dimensional fractal surface model is applied to the ACAT code and a surface binding energy of a target material is estimated by a many-body tight-binding potential. Simulation results calculated with the modified ACAT are compared with experimental data and the standard planar ACAT on sputtering yields of a Mo surface irradiated with 2 keV D + ions. The modified ACAT code predicts well experimental data from rough surfaces compared with the standard planar ACAT code.
Databáze: OpenAIRE