Abstract

The topographic and spectroscopic capabilities of the scanning tunnelling microscope (STM) have been used to explore the conductivity of hydrogenated diamond C(100)-(2×1) surfaces. It has been shown that the surface conductivity is determined by the interplay between various factors: the adsorption of atmospheric species on the surface, the doping concentration of the sample, the presence of sub-surface species and the presence of the top layer of hydrogen.

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