Positron affinities for elemental metals

摘要: The relevant quantity in the comparison of absolute positron energy levels different materials is sum internal electron and chemical potentials, i.e. Fermi level bottom lowest band relative to a common, well-defined reference energy. This defined as affinity. affinity reflects preference for components heterostructures made between host matrix precipitates alloys. Moreover, closely related work function positronium formation potential which are important parameters slow-positron-beam experiments. authors have determined alkaline alkaline-earth metals, 3d-, 4d-, 5d-transition metal series, some metals on right Periodic Table. diamond structure semiconductors also considered. determination based self-consistent calculations subsequent calculation within local-density approximation. trends studied interpreted along columns rows results compared with available