Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1805280 | Journal of Magnetism and Magnetic Materials | 2006 | 10 Pages |
Abstract
Ferromagnetic, semi-insulating Mn-alloyed ZnO films with a Curie temperature above 375 K have been grown by pulsed laser deposition on c-plane sapphire substrates. Antiferromagnetic coupling is revealed by temperature-dependent magnetization measurements. The antiferromagnetic coupling would be compatible with the observed weak ferromagnetism by assuming that the magnetic moments order antiferromagnetically but nonparallel (canted). We find a clear correlation between coercivity and mosaicity of the ferromagnetic Mn-alloyed ZnO films and explain it on the basis of a coercivity mechanism known from soft magnetic materials.
Related Topics
Physical Sciences and Engineering
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Condensed Matter Physics
Authors
M. Diaconu, H. Schmidt, H. Hochmuth, M. Lorenz, G. Benndorf, D. Spemann, A. Setzer, P. Esquinazi, A. Pöppl, H. von Wenckstern, K.-W. Nielsen, R. Gross, H. Schmid, W. Mader, G. Wagner, M. Grundmann,