Influence of vanadium concentration on the microstructure and magnetic properties of V-doped ZnO thin films
Influence of vanadium concentration on the microstructure and magnetic properties of V-doped ZnO thin films
Naydenova, T.; Atanasov, P.; Koleva, M.; Nedialkov, N.; Perriere, J.; Defourneau, D.; Fukuoka, H.; Obara, M.; Baumgart, C.; Zhou, S.; Schmidt, H.
Vanadium doped ZnO thin films (Zn1−xVxO, where x=0.05 or x=0.13) were grown on c-cut sapphire substrates using pulsed laser deposition technique. Their structure and magnetic properties were examined in relation to the doping concentration. All deposited films were highly oriented along the c-axis and exhibited ferromagnetic behavior with a Curie temperature up to 300 K. The crystal structure was found to be better for layers with lower vanadium concentration. The films had a porous fine-grained microstructure and a column-like character as the V concentration was reduced. A weak dependence of magnetization on temperature was observed. The saturation magnetization was found to be strongly dependent on the crystal structure, grain size and V-ion concentration.
Keywords: ZnO; Vanadium doping; Thin films; PLD; DMS
Involved research facilities
- Ion Beam Center DOI: 10.17815/jlsrf-3-159
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- DOI: 10.17815/jlsrf-3-159 is cited by this (Id 14357) publication
- Thin Solid Films 518(2010), 5505-5508
Permalink: https://www.hzdr.de/publications/Publ-14357