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- W2000397259 abstract "Nitrogen-doped anatase TiO <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sub> nanoparticles were synthesized by a two-step wet chemical method. The N element is proved to be incorporated into the lattice of TiO <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sub> with an average concentration of 3.3 at%. Magnetic measurements show that the undoped TiO <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sub> is ferromagnetic at room-temperature (RT), which can be ascribed to a universal ferromagnetism (FM) in nanoparticles of metal oxides. However, significant enhancement of the FM was observed in N-doped TiO <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sub> nanoparticles and it is robust against high-temperature annealing. Our results confirm the first-principle prediction that spin-polarized holes induced by N doping can mediate the spin alignment of the N dopants, leading to the strong RT FM in anatase TiO <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sub> ." @default.
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- W2000397259 date "2011-10-01" @default.
- W2000397259 modified "2023-10-16" @default.
- W2000397259 title "Ferromagnetism in Nitrogen-Doped ${rm TiO}_{2}$ Nanoparticles" @default.
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- W2000397259 doi "https://doi.org/10.1109/tmag.2011.2153832" @default.
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