Regensburg 2025 – scientific programme
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MA: Fachverband Magnetismus
MA 31: Poster II
MA 31.12: Poster
Wednesday, March 19, 2025, 17:00–19:30, P1
Investigating Micromagnetic Structures in Dy-Fe Ferrimagnetic Thin Films — •Pranati Parui1, Tamer Karaman1, Felix Büttner1,2, and Manfred Albrecht1 — 1University of Augsburg, Augsburg, Germany — 2Helmholtz-Zentrum Berlin, Berlin, Germany
Ferrimagnetic thin films present a unique platform for studying emergent spin textures and magnetic phenomena due to the interplay between the transition-metal and rare-earth sublattices. Here, we investigate ferrimagnetic Dy-Fe alloy thin films, which exhibit a broad spectrum of magnetic properties that are highly sensitive to composition and temperature. Despite their potential, a systematic investigation of Dy-Fe thin films remains unexplored. This work focuses on the sputter deposition of thin films with varying compositions and employs comprehensive characterization techniques, including SQUID magnetometry, magneto-optical Kerr effect (MOKE) measurements, magnetic force microscopy (MFM), and Lorentz transmission electron microscopy (LTEM), to unravel their micromagnetic structures, domain patterns, and domain wall chirality.
Keywords: Ferrimagnetic thin films; Micromagnetic structure; Spin texture; Domain patterns; Domain wall chirality