Abstract
Magnetic properties of transition metal (3d) doped SnO2 have been theoretically studied in the framework of density functional theory. All the ten 3d-transition metal ions doped at Sn-sites of SnO2 have been studied individually. Most of them (about seven elements) induces magnetic moment in the SnO2 system although five elements namely Cr, Mn, Fe, Co and Zn give a ferromagnetic (parallel spin ordering) ground state. Eventually, in case of Zn substitution at Sn site (ZnSn) both ferromagnetic ordering and p-type semiconducting nature are found, which can be a promising material for spin-valve applications. From bader charge calculation, role of electronegativity of the dopants has been established for generating ferromagnetic systems.
Published Version
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