Physics – Condensed Matter – Materials Science
Scientific paper
2009-08-04
J. Phys. D: Appl. Phys. 41 105011 (2008)
Physics
Condensed Matter
Materials Science
20 pages, 6 figures
Scientific paper
10.1088/0022-3727/41/10/105011
We investigated ZnO(0001) 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 is suppressed, no evidence for the relevance of the Fe magnetic moment for the observed ferromagnetism was found. The latter along with the cluster suppression is 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.
Arenholz Elke
Fassbender Juergen
Grenzer Joerg
Helm Muecklich A. M.
Kuepper K.
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