Abstract
Abstract A hemispherical gold single crystal was bombarded at normal incidence on its whole surface by 5 kev argon ions in a glow discharge. The final shape of the sample exhibits grooves and hills corresponding to crystallo-graphic directions and planes of low indices, thus revealing the anisotropy of the sputtering yield. In the energy range used here, the experiment showed that sputtering yield is a decreasing function of the transparency. This law fails for small regions of the crystal containing the (111) poles which have an anomalously high sputtering yield with respect to the other regions. The deposit obtained on a hemispherical collector is only formed by 〈110〉 spots, suggesting that the outgoing atoms from each point of the surface follow mainly the 〈110〉 directions.
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