Ball-milling method was applied to dissolve Fe into titanium dioxide (TiO2). X-ray diffraction indicated the starting anatase changed to a rutile-type structure with oxygen deficiency after ball milling. Transmission electron microscopy and X-ray absorption experiments were conducted to examine the possible existence of magnetic impurities in the ball-milled powders after they were leached in HCl solutions. Temperature dependence of the resistivity shows semiconducting behavior and the magnetic hysteresis loops at 5 and 300 K exhibit ferromagnetic characteristics. Fe-doped TiO2 films were also prepared by pulsed laser deposition. The magnetic properties of the films are discussed.
J. He合作论文数1J. Fang合作论文数1Jianbiao Dai合作论文数Advanced Materials Research Institute, University of New Orleans1
Jinke Tang合作论文数Department of Physics and Astronomy, College of Engineering and Physical Sciences, University of Wyoming1Detong Jiang合作论文数1Leonard Spinu合作论文数Advanced Materials Research Institute, University of New Orleans1
