Exchange scaling of ultrafast angular momentum transfer in 4$\it{f}$ antiferromagnets

[2108.03714] Exchange scaling of ultrafast angular momentum transfer in 4$\it{f}$ antiferromagnets Skip to main content Search Submit Donate Log in Search arXiv Press Enter to search · Advanced search Condensed Matter > Materials Science arXiv:2108.03714 (cond-mat) [Submitted on 8 Aug 2021] Title: Exchange scaling of ultrafast angular momentum transfer in 4$\it{f}$ antiferromagnets Authors: Y. W. Windsor , S-E. Lee , D. Zahn , V. Borisov , D. Thonig , K. Kliemt , A. Ernst , C. Schüßler-Langeheine , N. Pontius , U. Staub , C. Krellner , D. V. Vyalikh , O. Eriksson , L. Rettig View a PDF of the paper titled Exchange scaling of ultrafast angular momentum transfer in 4$\it{f}$ antiferromagnets, by Y. W. Windsor and 13 other authors View PDF Abstract: Ultrafast manipulation of the magnetic state of matter bears great potential for future information technologies. While demagnetisation in ferromagnets is governed by dissipation of angular momentum, materials with multiple spin sublattices, e.g. antiferromagnets, can allow direct angular momentum transfer between opposing spins, promising faster functionality. In lanthanides, 4$\it{f}$ magnetic exchange is mediated indirectly through the conduction electrons (the Ruderman-Kittel-Kasuya-Yosida interaction, RKKY), and the effect of such conditions on direct spin transfer processes is largely unexplored. Here, we investigate ultrafast magnetization dynamics in 4f antiferromagnets, and systematically vary the 4$\it{f}$ occupation, thereby altering the magnitude of RKKY. By combining time-resolved soft x-ray diffraction with ab-initio calculations, we find that the rate of direct transfer between opposing moments is directly determined by the magnitude of RKKY. Given the high sensitivity of RKKY to the conduction electrons, our results offer a novel approach for fine-tuning the speed of magnetic devices. Subjects: Materials Science (cond-mat.mtrl-sci) Cite as: arXiv:2108.03714 [cond-mat.mtrl-sci] (or arXiv:2108.03714v1 [cond-mat.mtrl-sci] for this version) https://doi.org/10.48550/arXiv.2108.03714 Focus to learn more arXiv-issued DOI via DataCite Journal reference: Nature Materials volume 21, 514-517 (2022) Related DOI : https://doi.org/10.1038/s41563-022-01206-4 Focus to learn more DOI(s) linking to related resources Submission history From: Yoav William Windsor [ view email ] [v1] Sun, 8 Aug 2021 19:20:49 UTC (950 KB) Full-text links: Access Paper: View a PDF of the paper titled Exchange scaling of ultrafast angular momentum transfer in 4$\it{f}$ antiferromagnets, by Y. W. Windsor and 13 other authors View PDF view license Current browse context: cond-mat.mtrl-sci < prev | next > new | recent | 2021-08 Change to browse by: cond-mat References & Citations NASA ADS Google Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer ( What is the Explorer? ) Connected Papers Toggle Connected Papers ( What is Connected Papers? ) Litmaps Toggle Litmaps ( What is Litmaps? ) scite.ai Toggle scite Smart Citations ( What are Smart Citations? ) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv ( What is alphaXiv? ) Links to Code Toggle CatalyzeX Code Finder for Papers ( What is CatalyzeX? ) DagsHub Toggle DagsHub ( What is DagsHub? ) GotitPub Toggle Gotit.pub ( What is GotitPub? ) Huggingface Toggle Hugging Face ( What is Huggingface? ) ScienceCast Toggle ScienceCast ( What is ScienceCast? ) Demos Demos Replicate Toggle Replicate ( What is Replicate? ) Spaces Toggle Hugging Face Spaces ( What is Spaces? ) Spaces Toggle TXYZ.AI ( What is TXYZ.AI? ) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower ( What are Influence Flowers? ) Core recommender toggle CORE Recommender ( What is CORE? ) IArxiv recommender toggle IArxiv Recommender ( What is IArxiv? ) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs . Which authors of this paper are endorsers? | Disable MathJax ( What is MathJax? ) We gratefully acknowledge support from our major funders , member institutions , , and all contributors. About · Help · Contact · Subscribe · Copyright · Privacy · Accessibility · Operational Status (opens in new tab) Major funding support from

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