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MA: Fachverband Magnetismus

MA 59: Posters Magnetism III

MA 59.1: Poster

Freitag, 20. März 2020, 09:00–12:00, P2/EG

Chiral Magnetic Texture and Spin Dynamics in Magnetic Superlattices — •Luis Flacke^1,2, Valentin Ahrens³, Simon Mendisch³, Markus Becherer³, Lukas Liensberger^1,2, Matthias Althammer^1,2, Hans Huebl^1,2,4, Stephan Geprägs¹, Rudolf Gross^1,2,4, and Mathias Weiler^1,2 — ¹Walther-Meißner Institut, Bayerische Akademie der Wissenschaften, Garching, Germany — ²Physics Department, Technical University of Munich, Garching, Germany — ³Chair of Nanoelectronics, Technical University of Munich, Munich, Germany — ⁴Munich Center for Quantum Science and Technology (MCQST), Munich, Germany

Chiral magnetic textures with topological protection, so called magnetic skyrmions, are attractive for spin-based data storage and processing applications. For such applications, thin-film, all-metallic magnetic heterostructures with chiral magnetic texture stabilized by interfacial Dzyaloshinskii-Moriya interaction are ideally suited. Here, we investigate static and dynamic properties of magnetic superlattices based on the low-damping and high saturation magnetization binary alloy Co₂₅Fe₇₅ (CoFe). We confirm the formation of skyrmions in [Pt/CoFe/Ir] superlattices and investigate their and associated GHz-frequency resonance using magnetic force microscopy and broadband magnetic resonance spectroscopy.

We acknowledge financial support by the DFG via project WE5386/5-1.