Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf
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Curvilinear magnetism: From curvature induced magnetochirality to shapeable magnetoelectronics
Non-collinear magnetic textures like spin spirals, chiral domain walls or skyrmions are typically stabilized by the intrinsic spin-orbit induced Dzyaloshinskii-Moriya interaction (DMI) . Curvature effects emerged as a novel mean to design chiral magnetic responses relying on extrinsic parameters, i.e. geometrical curvature of thin films [2-4]. The lack of an inversion symmetry and the emergence of a curvature induced effective anisotropy and DMI are characteristic of curved surfaces, leading to curvature-driven magnetochiral effects and topologically induced magnetization patterning [5-7]. Vast majority of activities are dedicated to curved ferromagnets, where recent achievements include the development of the theory of curvilinear micromagnetism  and the first experimental confirmation of curvature-driven chiral effects stemming from the exchange interaction . Only very recently, the focus was put also on curvilinear antiferromagnets. Pylypovskyi et al.  demonstrated that intrinsically achiral one-dimensional curvilinear antiferromagnets behave as a chiral helimagnet with geometrically tunable DMI and orientation of the Neel vector.
The application potential of 3D-shaped magnetic thin films is currently being explored as mechanically shapeable magnetic field sensors  for automotive applications, magnetoelectrics for memory devices, spin-wave ﬁlters, high-speed racetrack memory devices as well as on-skin interactive electronics [10-12].
The fundamentals as well as application relevant aspects of curvilinear ferro- and antiferromagnets will be covered in this presentation.
 D. Sander, DM et al., J. Phys. D 50, 363001 (2017)
 R. Streubel, DM et al., J. Phys. D 49, 363001 (2016)
 D. Sheka, DM et al., Communications Physics 3, 128 (2020)
 O. M. Volkov, DM et al., Phys. Rev. Lett. 123, 077201 (2019)
 V. Kravchuk, DM et al., Phys. Rev. Lett. 120, 067201 (2018)
 O. Pylypovskyi, DM et al., Phys. Rev. Appl. 10, 064057 (2018)
 O. Pylypovskyi, DM et al., Phys. Rev. Lett. 114, 197204 (2015)
 O.Pylypovskyi, DM et al., Nano Lett. (2020) doi:10.1021/acs.nanolett.0c03246
 D. Makarov et al., Appl. Phys. Rev. 3, 011101 (2016)
 S. Canon Bermudez, DM et al., Science Advances 4, eaao2623 (2018)
 S. Canon Bermudez, DM et al., Nature Electronics 1, 589 (2018)
 J. Ge, DM et al., Nature Communications 10, 4405 (2019).
Keywords: curvilinear magnetism; shapeable magnetoelectronics
Invited lecture (Conferences)
736. WE-Heraeus-Seminar "Magnetism at the Nanoscale: Imaging ‐ Fabrication – Physics", 06.01.2021, Bad Honnef, Germany