Oral presentation

Session Information

Location: Moinoterra Winery
Day: 4. Saturday 19th
Time: 10:00-10:30
Chairperson: to be announced…

Presentation Details

Presentation Type: Oral presentation
Title: Magnetic Topological Spin Structures from 2D to 3D
Abstract: Novel spintronic devices can play a role in the quest for GreenIT if they are stable and can transport and manipulate spin with low power. Devices have been proposed, where switching by energy-efficient approaches is used to manipulate topological spin structures that are stable in multilayers [1] but also in 2D systems [2] and going towards 3D [3]. We combine ultimate stability of topological states due to chiral interactions [4] with ultra-efficient manipulation using novel spin torques [4-7]. We use stochastic MTJs and skyrmion dynamics for non-conventional stochastic computing applications [8,9]. Beyond spatially multiplexed quasi-static Reservoir Computing [9], we have recently realized time multiplexed Reservoir Computing [10]. Given the huge tunability of thermal spin dynamics of skyrmions, the reservoir response can be tuned to the input timescales allowing for a drastic simplification of the device architecture and dynamic detection of time series with variable input timescales [10]. 1) K. Everschor-Sitte et al., J. Appl. Phys., vol. 124, no. 24, 240901, 2018. 2) M. Schmitt et al., Comm. Phys. Vol. 5, 254, 2022 3) D. Han et al., Nature Mater., vol. 18, pp. 703-708, 2019.. 4) K. Litzius et al., Nature Phys., vol. 13, no. 2, pp. 170–175, 2017. 5) K. Litzius et al., Nature Electron., vol. 3, no. 1, pp. 30–36, 2020. 6) S. Ding et al. Phys. Rev. Lett., vol. 125, 177201, 2020; Phys. Rev. Lett., vol. 128, 067201, 2022. 7) F. Martin et al., Mater. Res. Lett., vol. 11, 84, 2023 8) J. Zázvorka et al., Nature Nanotechnol., vol. 14, no. 7, pp. 658–661, 2019; R. Gruber et al., Nature Commun. vol. 13, pp. 3144, 2022. 9) K. Raab et al., Nature Commun. vol. 13, pp. 6982, 2022. 10) G. Beneke et al., Nature Commun. Vol. 15, pp. 8103, 2024.

Presenter

Prof Mathias Klaeui
Johannes Gutenberg University Mainz | Germany

Authors

1. Klaeui, Mathias | Institute of Physics, Johannes Gutenberg University Mainz, 55099 Mainz, Germany