Regensburg 2010 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 33: Poster II

MA 33.91: Poster

Freitag, 26. März 2010, 11:00–14:00, Poster B1

Co/Pd multilayer based magnetic tunnel junctions with perpendicular magnetic anisotropy — •Zoë Kugler, Günter Reiss, and Andy Thomas — Bielefeld University, Department of Physics, Universitätsstr. 25, 33615 Bielefeld, Germany

Magnetic tunnel junctions with perpendicular magnetic anisotropy have recently attracted much attention due to their potential for higher storage densities and for reduced writing current densities in future magnetic memory applications. We present temperature dependent transport and magnetic measurements of MgO, Mg/MgO and Alumina based magnetic tunnel junctions with perpendicularly magnetized Co/Pd electrodes. The effect of annealing temperature, Co thickness in the lower and upper electrode and number of Co/Pd bilayers on the magnetoresistance were investigated. In order to characterize the electrodes we have calculated the volume and interface anisotropy from magnetic measurements with respect to the annealing temperature and the number of Co/Pd bilayers.