Karl Franzens University Graz

Graz University of Technology 

New Frontiers in Nanoscale Magnetism: Towards Three Dimensional Materials and Devices
Prof. Dr. Amalio Fernandez-Pacheco
Vienna University of Technology
16:15 - 17:15 Tuesday 25 March 2025 TUG

The expansion of nanomagnetism to three dimensions provides exciting opportunities to explore new physical phenomena and opens great prospects to create 3D magnetic devices for green computing technologies [1]. In this talk, I will present some of our recent works dedicated to the investigation of three dimensional artificial magnetic materials, including multilayered and complex-shaped geometries. The talk will give an overview of the new methods we have developed to 3D print [2] and characterize [3] these nanomaterials, and some of the new functionalities obtained. This includes the creation of localized spin textures, topological defects and stray fields exploiting a combination of geometrical effects and inter-element interactions [4-6], the automotive 3D motion of domain walls [7], an unconventional magnetotransport effects in 3D nano-circuits [8].


References
1. A. Fernández-Pacheco et al, Nature Comm. 8, 1 (2017).
2. L. Skoric et al, Nano Letters 20, 184 (2020).
3. D. Sanz-Hernández et al, ACS Nano 11, 11066 (2017).
4. D. Sanz-Hernández et al, ACS Nano 14, 8084 (2020).
5. C. Donnelly et al, Nature Nanotechnol. 17, 136 (2022).
6. J. Fullerton et al, Nanotechnology 34, 125301 (2023).
7. L. Skoric et al, ACS Nano 16, 8860 (2022).
8. F. Meng et al, ACS Nano 15, 6765 (2021).