Regensburg 2013 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 16: Poster I
MA 16.69: Poster
Dienstag, 12. März 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 Potzger1 — 1Institute 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−SIG−a.