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Article Dans Une Revue Thin Solid Films Année : 2010

Influence of vanadium concentration on the microstructure and magnetic properties of V-doped ZnO thin films

Résumé

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.

Dates et versions

hal-00687604 , version 1 (13-04-2012)

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Ts. Naydenova, P. Atanasov, M. Koleva, N. Nedialkov, J. Perriere, et al.. Influence of vanadium concentration on the microstructure and magnetic properties of V-doped ZnO thin films. Thin Solid Films, 2010, 518, pp.5505-5508. ⟨10.1016/j.tsf.2010.04.034⟩. ⟨hal-00687604⟩
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