title: Room-Temperature Ferromagnetism in TiO2 Nanocrystals Synthesized by the Controlled Hydrolysis Procedure.
abstract: TiO2 nanocrystals were prepared by a controlled hydrolysis procedure at room temperature. The effect of V-doping, N-doping and V/N codoping on the lattice parameters and magnetic properties of TiO2 nanocrystals was investigated by means of X-ray diffraction, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy and vibration sample magnetometry. Doping performed at room temperature causes the expansion of lattice parameters. Undoped and doped TiO2 nanocrystals show room-temperature ferromagnetism. A monotonic correlation between saturation magnetization and the ratio of the lattice parameter c to a (c/a) was observed. Saturation magnetization of TiO2 nanocrystals increases with the value of c/a.
authors.forename: Deen
authors.initials: D
authors.lastname: Gu
authors.forename: Zhanhong
authors.initials: Z
authors.lastname: Sun
authors.forename: Lv
authors.initials: L
authors.lastname: Zhou
authors.forename: Yongda
authors.initials: Y
authors.lastname: Hu
authors.forename: Yadong
authors.initials: Y
authors.lastname: Jiang
mesh_terms: D006868:Hydrolysis; D059346:Magnets; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles; D056951:Photoelectron Spectroscopy; D013696:Temperature; D014025:Titanium / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: C009495:titanium dioxide; D014025:Titanium