Effects of nickel ions implantation and subsequent thermal annealing on structural and magnetic properties of titanium dioxide

16th Russian Youth Conference on Physics and Astronomy

物理学;天文学

Vakhitov, I.R.^1 ; Lyadov, N.M.^2 ; Valeev, V.F.^2 ; Nuzhdin, V.I.^2 ; Tagirov, L.R.^1 ; Khaibullin, R.I.^1,2

Institute of Physics, Kazan Federal University, Kazan, Russia^1

Laboratory of Radiation Physics, Zavoisky Physical-Technical Institute, Russian Academy of Science, Kazan, Russia^2

关键词: Crystalline orientations;    Implantation fluence;    Implanted samples;    Magnetic layers;    Single-crystalline;    Spintronic applications;    Structural and magnetic properties;    Thermal-annealing;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/572/1/012048/pdf
DOI  :  10.1088/1742-6596/572/1/012048

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

Wide bandgap semiconducting rutile (TiO2) doped with 3d-elements is a promising material for spintronic applications. In our work a composite material of TiO2:Ni has been formed by using implantation of Ni+ions into single-crystalline (100)- and (001)- plates of TiO2. Sub-micron magnetic layers of TiO2containing nickel dopant have been obtained at high implantation fluence of 1×1017ion/cm2. A part of the implanted samples was then annealed in vacuum at different temperatures T ann 450-1200 K for 30 min. The influence of the implantation fluence, crystalline orientation, as well as subsequent annealing on the structural and magnetic properties of the nickel-implanted TiO2have been investigated by using X-ray photoelectron spectroscopy, scanning electron microscopy and coil magnetometry techniques.