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Li intercalation effects on magnetism in undoped and Co-doped anatase TiO$_2$

Min Sik Park·S. K. Kwon·B. I. Min
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Abstract

The effects of $n$-type carrier doping by Li intercalation on magnetism in undoped and Co-doped anatase TiO$_2$ are investigated. We have found that doped $n$-type carriers in TiO$_2$ 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 TiO$_2$, most of the added $n$-type carriers fill the Co 3$d$ 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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Min Sik Park, S. K. Kwon, B. I. Min. 2002-09-11. Li intercalation effects on magnetism in undoped and Co-doped anatase TiO$_2$. https://doi.org/10.1016/s0921-4526(02)01824-0

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