Berlin 2024 – scientific programme

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MA: Fachverband Magnetismus

MA 44: Non-Skyrmionic Magnetic Textures

MA 44.1: Invited Talk

Thursday, March 21, 2024, 15:00–15:30, EB 301

Synthetic antiferromagnets with ferromagnetic domains separated by antiferromagnetic domain walls — •Ruslan Salikov¹, Fabian Samad^1,2, Sebastian Schneider³, Darius Pohl³, Bernd Rellinghaus³, Jürgen Lindner¹, Nikolai Kiselev⁴, and Olav Hellwig^1,2 — ¹HZDR, Dresden, Germany — ²TU Chemnitz, Chemnitz, Germany — ³TU Dresden, Dresden, Germany — ⁴Forschungszentrum Jülich, Jülich, Germany

Magnetic nanostructures, such as magnetic domains or magnetic solitons, hold significant potential for advancing data processing, storage, and neuromorphic type of applications. Through the utilization of [[Co/Pt]_X−1/Co/Ru]_N−1[Co/Pt]_X multilayer metamaterials, we stabilize mixed ferromagnetic/antiferromagnetic (FM/AF) textures. These textures exhibit FM perpendicular stripe and bubble domains, separated by AF Bloch-type domain walls. The acquired bubble domains, characterized by alternating chirality, unveil a promising avenue for three-dimensional memory and logic, combined with the skyrmionic race track memory concept.

Keywords: Synthetic antiferromagnets; Domain walls; Magnetic bubble domains; Bubble skyrmions; Alternating chiraliry