Interatomic potential and energy loss in planar channelling
- 7 November 1975
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 8 (21) , L439-L444
- https://doi.org/10.1088/0022-3719/8/21/005
Abstract
An interatomic potential essentially a mathematical approximation to Lindhard's standard interatomic potential but simpler to use, has been examined with regard to its predictions for the variation of the stopping function with the position of the ion in the channel. The variation of the interatomic potential itself with interatomic distance is found to be close to that of Lindhard's potential as well as the Moliere potential, for all values of r greater than a, the Thomas-Fermi distance. The variation of stopping function for heavy-ion (53127I) and alpha -particle channelling in the (100) and (111) planes of gold single crystals for the new (and simpler) potential is found to be reasonably close to the predictions of the Lindhard and Moliere potentials.Keywords
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