Thermoelectric scaling laws and Mott relation breakdown in the field-induced Weyl metallic state of Bi1-xSbx (x ~ 3-4 %)

Thermoelectric scaling laws and Mott relation breakdown in the field-induced Weyl metallic state of Bi1-xSbx (x ~ 3-4 %) | 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 Thermoelectric scaling laws and Mott relation breakdown in the field-induced Weyl metallic state of Bi 1-x Sb x (x ~ 3-4 %) Heon-Jung Kim, Yusuff Adeyemi Salawu, Dilanath Adhikari, Jin Hee Kim, and 4 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8706516/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 The Mott relation in thermoelectricity is widely regarded as a universal law, holding across diverse systems as long as quasiparticles exist. Its resilience has made it central to understanding how electrical and thermal currents are linked in quantum materials. Here we test its validity in antimony-doped bismuth (Bi 1−x Sb x , x ~ 3–4%) single crystals, which host a Weyl metallic state near a topological critical point. Magneto-Seebeck and anomalous Nernst measurements confirm the chiral anomaly, after which we propose a modified Mott relation that incorporates thermal broadening. This framework reveals a linear scaling between longitudinal and transverse thermoelectric conductivities. Unexpectedly, the scaling collapses for the anomalous transverse response, leaving no thermoelectric scaling law. Our findings establish Bi 1−x Sb x as a rare case of Mott relation breakdown, exposing the limits of this universal law and demanding new theoretical approaches to transport in topological systems. Physical sciences/Materials science/Condensed-matter physics/Topological matter/Topological insulators Physical sciences/Physics/Condensed-matter physics/Magnetic properties and materials Full Text Additional Declarations There is NO Competing Interest. Supplementary Files SupplementaryTextcp.docx Supplementary Text 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. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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