Observation of anomalous Hall effect in Mn3GaN p-wave magnet

Observation of anomalous Hall effect in Mn3GaN p-wave magnet | 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 Observation of anomalous Hall effect in Mn 3 GaN p-wave magnet Cong Wang, Jingyao Wang, Kewen Shi, Yuhao Jiang, Ying Sun, Sihao Deng, and 7 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6465494/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Unconventional antiferromagnets with spin splitting have garnered significant interest due to their unique characteristics. Recently, a new class of p-wave magnets has been predicted to induce significant spin-splitting in electronic bands within momentum space. However, the protection of time-reversal symmetry typically suppresses the observation of anomalous Hall effect (AHE), thereby limiting its potential applications. In this study, a giant anomalous Hall conductivity (AHC) exceeding 180 S cm⁻¹ is observed in Mn 3 GaN. Through electronic transport measurements, we demonstrate that the AHE is driven by the broken spatial inversion symmetry, characteristic of p-wave magnets, with upon further breaking of time-reversal symmetry via weak magnetization. First-principles calculations show that the observed AHE is linked to slight spin canting that break time-reversal symmetry. The band splitting in p-wave magnets further enhances the magnitude of the AHC variation. Our findings pave the way for the development of unconventional p-wave magnets in antiferromagnetic physics and spintronics. Physical sciences/Materials science/Materials for devices/Electronic devices Physical sciences/Physics/Electronics, photonics and device physics/Electronic and spintronic devices Full Text Additional Declarations There is NO Competing Interest. Supplementary Files SupplementaryInformation.docx Observation of anomalous Hall effect in Mn3GaN P-wave magnet Cite Share Download PDF Status: Posted 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. 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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-6465494","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":444652160,"identity":"a8747119-851a-4870-925d-9dda3633cc5b","order_by":0,"name":"Cong 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