Berlin 2024 – scientific programme

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MA: Fachverband Magnetismus

MA 47: Poster III

MA 47.27: Poster

Thursday, March 21, 2024, 15:00–18:00, Poster D

Magnetic properties of FeNi thin film systems — •Inga Ennen, Roland Schubert, Nancy Töws, Laila Bondzio, and Andreas Hütten — Bielefeld University, Bielefeld, Germany

FeNi alloys are the basis for a large number of different technical materials. Despite their widespread use, e.g. in stainless steel or Hall sensors, the influence of magnetism on the martensitic phase transition in FeNi alloys is not fully understood.

In this contribution, we focus on the magnetic properties of FeNi thin film systems that exhibit high strain coupling due to the preparation of alternating layers crystallized mainly in the martensite and austenite phase. Magnetometry measurements as well as magnetic imaging techniques using a transmission electron microscope are applied to the thin film systems and correlated with micromagnetic simulations.

Keywords: FeNi; Strain coupling; Lorentz microscopy; micromagnetic simulations