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KR: Fachverband Kristallographie
KR 10: Poster: Multiferroics (with MA, DF, KR, DS)
KR 10.34: Poster
Tuesday, March 23, 2010, 10:45–13:45, Poster A
Coercivity mechanism in hard magnetic SmCo5/PrCo5 bilayers — •Felix Fleischhauer, Volker Neu, and Ludwig Schultz — IFW Dresden, Institute of Metallic Materials, 01069 Dresden, Germany
The evolution of the coercivity in hard magnetic SmCo5/PrCo5 bilayers shows a non-trivial dependence on the relative sublayer thickness and the stacking order.
These dependencies have been studied for bilayers with 40 nm overall thickness. They were epitaxially grown on Cr buffered MgO(110) substrates using pulsed laser deposition technique. Temperature dependent coercivity was measured in the range from 200 K to 400 K along with the magnetic relaxation at room temperature. The results are discussed within the framework of several pinning concepts.