Defect driven ferromagnetism in SnO₂: a combined study using density functional theory and positron annihilation spectroscopy

Abstract

Room temperature ferromagnetic ordering has been observed in polycrystalline SnO₂. Defect characterization by positron annihilation technique and <italic>ab initio</italic> calculation indicates that tin vacancies are mainly responsible for inducing magnetic moment in oxygen irradiate SnO₂.