Abstract

The Rutherford backscattering technique has been applied for the absolute determination of the integrated condensation coefficient of gold on rocksalt cleavage faces. By this method the number of deposited atoms down to an average thickness of 1 100 monolayer can be measured. The experimental results at different substrate temperatures and times have been compared with sticking coefficients which are calculated from the nucleation and growth theory of thin films. The contact angle of the microscopic clusters of the deposit on the substrate has been determined from the number of deposited atoms, measured by ion backscattering, and the cluster distribution, measured by electronmicroscopy.

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