Magnetic and transport properties of transition-metal implanted ZnO single crystalsR.P. Borges, B. Ribeiro, A.R.G. Costa, C. Silva, R.C. da Silva, G. Evans, A.P. Gonçalves, M.M. Cruz, M. Godinho and U. WahlEur. Phys. J. B, 85 3 (2012) 91DOI: https://doi.org/10.1140/epjb/e2012-30089-y