Berlin 2024 – scientific programme
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MA: Fachverband Magnetismus
MA 20: Poster I
MA 20.36: Poster
Tuesday, March 19, 2024, 16:30–19:00, Poster A
Collective out-of-plane magnetization reversal in tilted stripe domain systems via a single point of irreversibility — •Peter Heinig1,2, Ruslan Salikhov1, Fabian Samad1,2, Lorenzo Fallarino1,3, Gauravkumar Patel1, Attila Kákay1, Nikolai S. Kiselev4, and Olav Hellwig1,2 — 1Helmholtz-Zentrum Dresden-Rossendorf — 2Chemnitz University of Technology — 3CIC energiGUNE — 4Forschungszentrum Jülich
Periodic magnetic stripe domain patterns are a prominent feature of perpendicular anisotropy thin film systems. Here, we focus on the behavior of [Co(3.0 nm)/Pt(0.6 nm)]X multilayers within the transitional regime from preferred in-plane (IP), X=6, to out-of-plane (OOP), X=22, magnetization orientation, particularly, we examine a sample with X=11 repetitions, which exhibits a remanent state characterized by a significant presence of both OOP and IP magnetization components, here referred to as the "tilted" stripe domain state*. We investigate this specific sample with vibrating sample magnetometry, magnetic force microscopy and micromagnetic simulations, and find an unusual OOP field reversal behavior via a remanent parallel stripe domain state and a single point of irreversibility. Finally, we show that this characteristic reversal behavior is a rather general feature of transitional IP to OOP systems by comparing the Co/Pt multilayers with c-axis single Co thin films and Fe/Gd multilayers.
*[L. Fallarino et al., Phys. Rev. B 99, 024431 (2019)]
Keywords: tilted magnetization; single point of irreversibility; Co/Pt multilayer