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A k-space transport analysis of the BEEM spectroscopy of Au/Si Schottky barriers

U. Hohenester·P. Kocevar·P. L. de Andres·F. Flores
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Abstract

We address the question of the spatial resolution of ballistic electron emission microscopy (BEEM) of Shottky barriers in Au(111)/Si(100) and Au(111)/Si(111) interfaces. A novel combination of Green-function and k-space Ensemble-Monte-Carlo techniques is used to obtain new insights into the spatial and energetic evolution of the STM-tip-induced electrons during their passage through the metallic layer before reaching the metal-semiconductor interface. In particular, it is shown how the effect of band-structure-induced directional focusing of the electrons enforces a reinterpretation of existing experimental data.

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U. Hohenester, P. Kocevar, P. L. de Andres, F. Flores. 1997-10-15. A k-space transport analysis of the BEEM spectroscopy of Au/Si Schottky barriers. https://arxiv.org/abs/cond-mat/9710147

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