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Regensburg 2013 – scientific programme

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MA: Fachverband Magnetismus

MA 16: Poster I

MA 16.69: Poster

Tuesday, March 12, 2013, 10:30–13:30, Poster D

Magnetic and defect-properties of Co implanted TiO2 — •Oguz Yildirim1,4, Steffen Cornelius1,4, Mykola Vinnichenko1, Maik Buterling2, Andreas Wagner2, Alevtina Smekhova3, and Kay Potzger11Institute of Ion Beam Physics and Materials Research, HZDR, POB 510119, 01314, Dresden, Germany — 2Institute for Radiation Physics, HZDR, POB510119, 01328, Dresden, Germany — 3MSU, Faculty of Physics, Solid State Physics and Magnetism Departments,Moscow, Russia — 4TU Dresden, Helmholtzstr. 10, 01069, Dresden, Germany

The magnetic and structrual properties of the potential diluted magnetic oxide (DMO), i.e. Co implanted TiO2 thin films have been investigated. These films have been grown by magnetron sputtering on SrTiO3 single crystals. Avoidence of possible magnetic contamination has been verified by magnetometry measurements after substrate preparation and deposition. For magnetic doping, implantations of Co+ ions have been performed at atomic concentrations of 0.5%, 2.5% and 3% respectively. The dependencies between the fluence implanted, defect creation and ferromagnetic properties have been investigated using magnetometry, positron annihilation spectroscopy and structural characterisation.
This work is supported by the Initiative and Networking Fund of the German Helmholtz Association, Helmholtz-Russia Joint Research Group HRJRG−314, and the Russian Foundation for Basic Research, RFBR #12−02−91321−SIGa.

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