Inductive detection of inverse spin-orbit torques in magnetic heterostructures

[2405.15617] Inductive detection of inverse spin-orbit torques in magnetic heterostructures Skip to main content Search Submit Donate Log in Search arXiv Press Enter to search · Advanced search Condensed Matter > Materials Science arXiv:2405.15617 (cond-mat) [Submitted on 24 May 2024 ( v1 ), last revised 19 Sep 2024 (this version, v2)] Title: Inductive detection of inverse spin-orbit torques in magnetic heterostructures Authors: Misbah Yaqoob , Fabian Kammerbauer , Tom G. Saunderson , Vitaliy I. Vasyuchka , Dongwook Go , Hassan Al-Hamdo , Gerhard Jakob , Yuriy Mokrousov , Mathias Kläui , Mathias Weiler View a PDF of the paper titled Inductive detection of inverse spin-orbit torques in magnetic heterostructures, by Misbah Yaqoob and 9 other authors View PDF HTML (experimental) Abstract: The manipulation of magnetization via Magnetic torques is one of the most important phenomena in spintronics. In thin films, conventionally, a charge current flowing in a heavy metal is used to generate transverse spin currents and to exert torques on the magnetization of an adjacent ferromagnetic thin film layer. Here, in contrast to the typically employed heavy metals, we study spin-to-charge conversion in ferromagnetic heterostructures with large spin-orbit interaction that function as the torque-generating layers. In particular, we chose perpendicular magnetic anisotropy (PMA) multilayers [Co/Ni] and [Co/Pt] as the torque-generating layers and drive magnetization dynamics in metallic ferromagnetic thin film $\mathrm{Co_{20}Fe_{60}B_{20}}$ (CoFeB) layers with in-plane magnetic anisotropy (IMA). We investigate the spin dynamics driven by spin-orbit torque (SOT) and the concomitant charge current generation by the inverse SOT process using an inductive technique based on a vector network analyzer. In our experimental findings, we find that the SOTs generated by our multilayers are of a magnitude comparable to those produced by Pt, consistent with first-principles calculations. Furthermore, we noted a significant correlation between the SOT and the thickness of the CoFeB layer. Subjects: Materials Science (cond-mat.mtrl-sci) ; Applied Physics (physics.app-ph) Cite as: arXiv:2405.15617 [cond-mat.mtrl-sci] (or arXiv:2405.15617v2 [cond-mat.mtrl-sci] for this version) https://doi.org/10.48550/arXiv.2405.15617 Focus to learn more arXiv-issued DOI via DataCite Journal reference: Phys. Rev. B 110, 104432 (2024) Related DOI : https://doi.org/10.1103/PhysRevB.110.104432 Focus to learn more DOI(s) linking to related resources Submission history From: Misbah Yaqoob [ view email ] [v1] Fri, 24 May 2024 15:04:26 UTC (11,020 KB) [v2] Thu, 19 Sep 2024 08:53:49 UTC (9,238 KB) Full-text links: Access Paper: View a PDF of the paper titled Inductive detection of inverse spin-orbit torques in magnetic heterostructures, by Misbah Yaqoob and 9 other authors View PDF HTML (experimental) TeX Source view license Current browse context: cond-mat.mtrl-sci < prev | next > new | recent | 2024-05 Change to browse by: cond-mat physics physics.app-ph References & Citations NASA ADS Google Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... 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