Influence of asymmetrical correlations in the secondary emission of solid compounds

Abstract

The author studies the kinetic secondary emission of two component targets submitted to an ionic bombardment. He examines in particular the compounds (Al, O) and (Al, Cu). The problem of electronic excitations in the collision of two particles in a solid is strongly connected to the problem of the collision of the same particles in the gas phase. Thus he has used, in this paper, the new ideas about the correlation diagrams in asymmetric systems which have been recently discovered in inelastic gaseous collisions. His results show that the kinetic emissions (kinetic positive aluminium ions and Auger electrons) of the compounds under consideration are much lower than the kinetic emission of the pure metals. These conclusions are in agreement with recent experimental data.