Cu codoping control over magnetic precipitate formation in ZnCoO   nanowires
  Using electrodeposition, we have grown nanowires of ZnCoO with Cu codoping concentrations varying from 4-10 at.%, controlled only by the deposition potential. We demonstrate control over magnetic Co oxide nano-precipitate formation in the nanowires via the Cu concentration. The different magnetic behavior of the Co oxide nano-precipitates indicates the potential of ZnCoO for magnetic sensor applications. 
S. Granville, E. Matei, I. Enculescu, M. Eugenia Toimil-Molares
cond-mat.mtrl-sci