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We have investigated isotope effects in the sputtering of a u 63 Cu 69.165 Cu 30.9 mixture under 2 keV Xe ion bombardment, using a dynamic Monte Carlo program. For the u- 63 Cu- 65 Cu sputtering, our calculations show that the isotope fractionation difference between small and large polar angles, δ(15 ...
The dynamic Monte Carlo computer simulation has been used to estimate the mean sputter depth and the surface composition gradient of binary component materials during prolonged ion bombardment. Calculation results indicate that for Pt 0.5 Cu 0.5 sputtering, the Pt mean sputter depth is much larger than for Cu at high fluence, but the Pt mean sputter depth approximates...
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