Comments on positron annihilation and the vacancy properties of Mg

Abstract

Recent publications concerning the vacancy properties of Mg, as deduced from positron-annihilation-spectroscopy data, are judged in the light of earlier information based on lattice parameter and bulk thermal expansion data and tracer self-diffusion results. It is apparent that the separate analyses of the data from these various sources in terms of conventional monovacancy properties lead to inconsistent conclusions when they are considered as a whole.