Berlin 2015 – scientific programme
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MA: Fachverband Magnetismus
MA 35: Magnetization / Demagnetization Dynamics II
MA 35.7: Talk
Wednesday, March 18, 2015, 16:45–17:00, EB 301
Sublattice Magnetization Orientation Dependence of All-Optical Magnetic Switching in Tb-Fe Thin Films — •Alexander Hassdenteufel1, Christian Schubert1,2, Johannes Schmidt3,4, Peter Richter1, Dietrich R. T. Zahn1, Georgeta Salvan1, Manfred Helm3,4, Rudolf Bratschitsch5, and Manfred Albrecht2 — 1Institute of Physics, Technische Universität Chemnitz, D-09107 Chemnitz, Germany — 2Institute of Physics, University of Augsburg, D-86159 Augsburg, Germany — 3Helmholtz Zentrum Dresden Rossendorf, P.O. Box 510119, D-01314 Dresden, Germany — 4Technische Universität Dresden, D-01062 Dresden, Germany — 5Institute of Physics, University of Münster, D-48149 Münster, Germany
All-optical switching (AOS), first witnessed with GdFeCo [1], attracted growing attention for future data storage devices as well as from the fundamentals point of view. Here we demonstrate that the direction of AOS in rare-earth transition-metal (RE-TM) alloy Tb-Fe thin films depends on the orientation of the sublattice magnetization and not on the direction of the resulting net magnetization[2]. This finding of the sublattice dependence of AOS contributes to the understanding of switching in RE-TM multilayered thin films [3] and heterostructures [4]. [1] C. D. Stanciu et al. Phys. Rev. Lett 99, 047601 (2007). [2] A. Hassdenteufel et al. Appl. Phys. Lett. 105, 112403 (2014). [3] S. Mangin et al. Nature Mater. 13, 286-292 (2014). [4] C. Schubert et al. Appl. Phys. Lett. 104, 082406 (2014).