SKM 2021 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 17: Skyrmions II (joint session MA/KFM)
MA 17.11: Vortrag
Freitag, 1. Oktober 2021, 12:45–13:00, H5
Spin-orbit enabled all-electrical readout of chiral spin-textures — •Imara Lima Fernandes1, Stefan Blügel1, and Samir Lounis1,2 — 1Peter Grünberg Institut and Institute for Advanced Simulation, Forschungszentrum Jülich & JARA, D-52425 Jülich, Germany — 2Faculty of Physics, University of Duisburg-Essen and CENIDE, 47053 Duisburg, Germany
Non-collinear magnetic states are promising candidates for future information technology. However, their implementation in conventional memories is hindered by the inability of the electrical readout of their chiral nature based on current perpendicular to-plane (CPP) geometries [1,2,3]. In this work, we investigate the emergence of a rich family of new spin-mixing magnetoresistances enabling highly efficient all-electrical readout of the chirality and helicity of spin-swirling textures. Such transport effects are systematised at various non-collinear magnetic states and compared with the revealed spin-orbit-independent multi-site magnetoresistances. Owing to their simple implementation in readily available reading devices, the proposed magnetoresistances offer exciting and decisive ingredients to explore with all-electrical means the rich physics of topological and chiral magnetic objects.
– Funding is provided by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (ERC-consolidator grant 681405 – DYNASORE and grant 856538 – 3D MAGiC).
[1] Crum et al., Nat. Commun. 6, 8541 (2015); [2] Hanneken et al., Nat. Nano. 10, 1039 (2015); [3] Fernandes et al., Nat. Commun. 11, 1602 (2020).