Abstract:The nature of surface states on clean Ge and Si surfaces is discussed. New experimental data about the interaction of different acceptor molecules with clean Ge and Si surfaces are presented. New paramagnetic adsorption centres are detected by the EPR method. The characteristic feature of the EPR signal detected is a superfine splitting on the aeSi nuclei. This result shows that the unpaired electron in paramagnetic complexes formed by adsorption are largely drawn into the Si atoms. The initial heats of O? ads… Show more
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