Bhatti, Kanwal Preet Malik, Vivek Kumar Chaudhary, Sujeet 2007-12-05 Cobalt doped zinc oxide thin films have been deposited using spray pyrolysis method. These single phasic films exhibited [100] preferential texture and small decrease in the lattice parameter on cobalt substitution. The films having different Co concentration have almost similar surface morphology and microstructure. These Zn_1−<i>x</i>Co_<i>x</i>O (<i>x</i> ≤ 0.10) thin films distinctly showed ferromagnetic character at room temperature. The optical transmission measurements of these films clearly proved that in these films Co substitutes for Zn²⁺ and exists in +2 state. Based on the optical, structural and magnetic measurements, the possibility of occurrence of ferromagnetic ordering due to cobalt clustering is ruled out in these spray-pyrolyzed films. A correlation of the observed ferromagnetic behavior in these Zn_1−<i>x</i>Co_<i>x</i>O films with structural change resulting from the addition of Co is presented in this paper. application/pdf https://folia.unifr.ch/global/documents/300774 https://folia.unifr.ch/documents/300774/files/malik_csz.pdf eng info:eu-repo/semantics/altIdentifier/doi/10.1007/s10854-007-9501-4 info:eu-repo/semantics/openAccess License undefined Journal of Materials Science: Materials in Electronics. - 2008, vol. 19, no. 8-9, p. 849-854 info:eu-repo/classification/udc/53 Cobalt substituted ZnO thin films: a potential candidate for spintronics http://purl.org/coar/resource_type/c_6501