Cluster and Velocity Effects on Yields and Kinetic Energy Distributions ofDesorbed from LiF
- 19 June 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 84 (25), 5904-5907
- https://doi.org/10.1103/physrevlett.84.5904
Abstract
MeV and ions were used to induce desorption from LiF. The contributions due to elastic atomic collisions and electronic excitation processes to the sputtering yield could be unambiguously separated. In the case of ions, a yield enhancement, i.e., , was found only for the electronic process. The maximum sputtering yield was observed in a projectile velocity range where the projectile electronic energy loss still increases. These results are simultaneously explained using the radial distribution of the deposited energy rather than the electronic energy loss.
Keywords
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