Regensburg 2019 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 3: Focus Session: Novel 3D magnetic spin textures

MA 3.5: Hauptvortrag

Montag, 1. April 2019, 11:30–12:00, H38

Three-dimensional nanomagnetism: Present and future — •Amalio Fernandez-Pacheco — School of Physics and Astronomy, University of Glasgow, G12 8SU, Scotland, United Kingdom — Cavendish Laboratory, University of Cambridge, CB3 0HE, United Kingdom

Three-dimensional nanomagnetism is a new and exciting area of research focused on investigating nanomagnets that extend beyond the standard planar configuration. In these systems, with unconventional geometries and spin interactions, new physical effects emerge, with interlinked geometry, topology and chirality, paving the way to novel devices with functionalities beyond the substrate plane. However, the leap to 3D is complex, demanding for new fabrication and characterisation tools.

In this talk, I will review recent progress in this area, particularly on results of my group and collaborators. These include the development of "3D nano-printing" processes for advanced nanofabrication, which have allowed us to carry out pioneering experiments where magnetic information in the form of domain walls can be injected into 3D Permalloy nanowires. In these systems, the use of soft X-Ray magnetic microscopy techniques enables the reconstruction of their magnetic configuration in great detail. The extension to 3D also includes multilayered systems, where the interlayer Dzyaloshinskii-Moriya interaction opens a new route to create 3D spin chiral textures.