SKM 2023 – scientific programme
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MA: Fachverband Magnetismus
MA 40: Poster Magnetism II
MA 40.50: Poster
Thursday, March 30, 2023, 14:00–16:00, P2/EG
Growth and magnetic properties of Fe/Pt heterostructures with L10-FePt alloyed interface — Laura Scheuer1 and •Evangelos Th. Papaioannou2 — 1Fachbereich Physik and Landesforschungszentrum OPTIMAS, Technische Universität Kaiserslautern, Erwin-Schrödinger-Str. 56, 67663, Kaiserslautern, Germany — 2Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 3, 06120 Halle, Germany
The growth of Fe/L10FePt/Pt trilayers was achieved by means of electron beam evaporation technique and appropriate annealing. We show the formation of the L10 alloy for the case of Fe(12nm)/Pt (6nm) [1] and we investigate the formation of L10 phase for Fe,Pt thicknesses smaller than 3 nm. Magneto-optical and Squid magnetometry reveal the strong change in the magnetization reversal when the L10 phase appears. Furthermore, ferromagnetic resonance studies show a large enhancement of the gilbert damping parameter for the alloyed interface. Mumax simulations are implemented in order to understand the role of the L10 in the magnetic properties of the heterostructures.
[1] L.Scheuer et al., iScience25, 104319, (2022)