Tunable magnons in a dual-gated 2D antiferromagnet

Tunable magnons in a dual-gated 2D antiferromagnet | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Tunable magnons in a dual-gated 2D antiferromagnet Nele Stetzuhn, Abhijeet M. Kumar, Sviatoslav Kovalchuk, Denis Yagodkin, and 11 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6804794/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted You are reading this latest preprint version Abstract The layered antiferromagnet CrSBr features magnons coupled to other quasiparticles, including excitons and polaritons, enabling their easy optical accessibility. In this work, we investigate the tunability of magnons in few-layered devices in response to changes in carrier density and the application of a perpendicular electric field. We demonstrate an on-chip tunability of the in- and out-of-phase magnon frequencies by up to 2 GHz. While the frequencies of both modes increase with the electron density, we observe an asymmetric response with respect to the electric field in a dual-gated trilayer device. To understand the mechanism of this disparity, we develop a layer-resolved macrospin model describing the magnetic dynamics in thin, non-uniformly doped devices. Through this model we establish the doping- and electric-field-dependence of the exchange interaction, magnetic anisotropy, and magnetic moment of individual layers. Our results advance the applications of gate-tunable magnonic devices based on 2D materials. Physical sciences/Physics/Optical physics/Magneto-optics Physical sciences/Physics/Condensed-matter physics/Spintronics Physical sciences/Physics/Condensed-matter physics/Magnetic properties and materials Physical sciences/Materials science/Nanoscale materials/Two-dimensional materials Full Text Additional Declarations There is NO Competing Interest. Supplementary Files SIfinal.pdf Supplementary Information: Tunable magnons in a dual-gated 2D antiferromagnet Cite Share Download PDF Status: Under Review Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-6804794","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":470441089,"identity":"58605b68-29ea-4d38-b179-69b42baee6fa","order_by":0,"name":"Nele Stetzuhn","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABEklEQVRIie2QMUvEMBiGv1DoLfFce1TrX/gkcIeTfyXB9UBdxEGwRyEuAVcF8Wd01aPQLvkBNwhXOXAuuDhkMO15W4KODnmGEEievN8bgEDgXxLlu10McJ0BJHbbol1efQrpFQQ6KJptFf5nhcidAn5lNlosWjAmO93X083lM4o8LeqOX7zBuMmdyolaFkgkMgp6xh5LqxzUZw8cP2Ci3TG4EjIhOQpF1DTdK414Wc2Z7VLZI+5W1u93X2DwVkXUKk82JTn/3Crr1pNCpC2OnMa9kvfKPPpJcddHLYpESHasdHyV0hqZ7TIMRifaM1hTLbvOZEej+6pM6Q0e2h/bQGeqbNy46w84X6P++4FAIBD4jW9oTFuo80JDbwAAAABJRU5ErkJggg==","orcid":"","institution":"Freie Universität Berlin","correspondingAuthor":true,"prefix":"","firstName":"Nele","middleName":"","lastName":"Stetzuhn","suffix":""},{"id":470441090,"identity":"e53381aa-1ca8-4ce6-a6f4-d8b2a1222287","order_by":1,"name":"Abhijeet M. 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