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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.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 279: Symposium A – Beam-Solid Interactions–Fundamentals and Applications , 1992 , 613
Copyright
Copyright © Materials Research Society 1993

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References

1. Schilling, W., Burger, G., Isebeck, K. and Wenzl, H., in Vacancies and Interstitials in Metals, Eds. Seeger, A., Schumacher, D., Schilling, W. and Diehl, J., (North-Holland, Amsterdam, 1970) p. 255.Google Scholar
2. Harrison, D. E. Jr, Kelly, P. W., Garrison, B. J. and Winograd, N., Surf. Sci. 76, 311 (1978).Google Scholar
3. Webb, R. P. and Harrison, D. E. Jr, Radiat. Eff. Lett. 86, 15 (1983).Google Scholar
4. Michely, Th. and Comsa, G., Phys. Rev. B 44, 8411 (1991).Google Scholar
5. Breeman, M. and Boemia, D. O., Surf. Sci. 269/270, 224 (1992).Google Scholar
6. Breeman, M. and Boerma, D. O., Surf. Sci. Lett. 278, 110 (1992).Google Scholar
7. Wiehert, Th., Deicher, M., Echt, O. and Recknagel, E., Phys. Rev. Lett. 41, 1659 (1978).CrossRefGoogle Scholar
8. The computer program TRIM-CASCADE is written by DrBiersack, J. P.. For more details on TRIM programs, the reader is referred to: Ziegler, J. F., Biersack, J. P. and Littmark, U., in The Stopping and Range of Ions in Solids, (Pergamon Press, New York, 1985).Google Scholar
9. Detailed knowledge of the diffusivity of SIAs is not necessary, since the time scale for diffusion of SIAs created in damage cascades is many orders of magnitude smaller than die time between overlapping damage cascades (= 100 s in the experiments).Google Scholar
10. Scholz, A. and Lehmann, C., Phys. Rev. B, 6, 813 (1972).Google Scholar
11. Drittler, K., Lahann, H. J. and Wollenberger, H., Radiat. Eff., 2, 51 (1969).Google Scholar