Li intercalation effects on magnetism in undoped and Co-doped anatase TiO₂
Park, Min Sik · Kwon, S. K. · Min, B. I.
Original · EN
The effects of n-type carrier doping by Li intercalation on magnetism in undoped and Co-doped anatase TiO₂ are investigated. We have found that doped n-type carriers in TiO₂ are localized mainly at Ti sites near the intercalated Li. With increasing the intercalation, local spins are realized at Ti. In the case of Co-doped TiO₂, most of the added n-type carriers fill the Co 3d bands and the rest are localized at Ti. Therefore, Co magnetic moment vanishes by Li intercalation to have a nonmagnetic ground state.
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