An investigation was made of ZnO(00•1) single crystals annealed in high vacuum

with respect to their magnetic properties and cluster formation tendency after

implant-doping with Fe. While metallic Fe cluster formation was suppressed, no evidence for the relevance of the Fe magnetic moment to the observed

ferromagnetism was found. The latter along with the cluster suppression was

discussed with respect to defects in the ZnO host matrix, since the crystalline

quality of the substrates was lowered due to the preparation as observed by X-ray

diffraction.

Ferromagnetism and Suppression of Metallic Clusters in Fe Implanted ZnO: a

Phenomenon Related to Defects? S.Zhou, K.Potzger, G.Talut, H.Reuther,

K.Kuepper, J.Grenzer, Q.Xu, A.Mücklich, M.Helm, J.Fassbender, E.Arenholz:

Journal of Physics D, 2008, 41[10], 105011