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Detailed Model for Ion-Beam Induced Adatom Generation

Published online by Cambridge University Press:  25 February 2011

M. Breeman and
D. O. Boerma
M. Breeman
Affiliation:
Nuclear Solid State Physics, Materials Science Centre, Groningen University, Nijenborgh 4, 9747 AG Groningen, The Netherlands
D. O. Boerma
Affiliation:
Nuclear Solid State Physics, Materials Science Centre, Groningen University, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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Abstract

In earlier low-energy ion scattering experiments of 6 keV Ne ions on Cu(100), Cu adatoms were observed to appear on the surface. The number of produced adatoms per incoming ion was found to decrease to 50% of its initial value of 3.5 after prolonged irradiation. In this paper we present calculations of the adatom production as a function of irradiation dose. From a comparison with the experimental data, the trapping radius of a vacancy was determined to be 5.4 ± 0.9 Å, in agreement with values reported in the literature.

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References

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