Proximity Induced Superconductivity in Antimony Telluride Single Crystal by an Interplay of Indium contacts

Proximity Induced Superconductivity in Antimony Telluride Single Crystal by an Interplay of Indium contacts | 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 Research Article Proximity Induced Superconductivity in Antimony Telluride Single Crystal by an Interplay of Indium contacts Satyendra Singh, R. Venkatesh This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6801241/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 To investigate the proximity and inverse proximity superconductivity (SC) in topological materials (TMs) {such as topological insulators (TIs) and topological crystalline insulators (TCIs)} by the hosting of an interface between TM/SC may be the novel strategy in the understanding of the unexplored Majorana fermions and spin-triplet superconductivity etc. [https://doi.org/10.1103/PhysRevB.81.241310, https://doi.org/10.1103/PhysRevRes.3.033008]. The TMs are known to preserve the non-trivial surface states (SS) which have emerged for exploring the exotic superconducting properties induced by the proximity effect. The observed superconductivity (proximity & inverse proximity) induced due to the mutual competition between the robust SS of TMs and sub energy gap of SCs. This strong competition between the electron-electron interaction (EEI) and cooper pairs correlation lead to proximity (inverse proximity) superconductivity if SC energy gap is dominant over EEI or vice versa (if rapidly mobile Dirac electrons break the phase coherence of cooper pairs at the interface (EEI>SC gap)) as discussed in this article. The subsequent changes discussed in the superconducting proximity with perpendicular and parallel magnetic field (M.F) makes this work very interesting due to the field dependence mechanism. The superconducting onset temperature is found to be (T c onset ) ~4.1 K with the upper critical field (H c2 ) ~1541 Oersted which is accordance with Ginzburg Landau Theory (GLT) observed in Sb 2 Te 3 contacted with s-wave SC indium. Soft Condensed-matter Physics Single Crystal Sb2Te3 Proximity Superconductivity Quartz Sealing Synthesis Electron-Electron Interaction Perpendicular and Parallel Magneto-transport Ginzburg Landau Theory Full Text Additional Declarations The authors declare no competing interests. Supplementary Files ProximitySuperconductivity.pptx Animation View of Fig 7, proximity and inverse proximity superconductivity 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-6801241","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":465185491,"identity":"9bc502c2-e006-436f-aceb-905d7a72dd70","order_by":0,"name":"Satyendra Singh","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAtElEQVRIiWNgGAWjYDACZjBpk8DAfLiBJC1pCQxsicRqgYDDJGgxZ+d9JvFzx/k83TbGBoYfNQzy5oS0WDazm0n2nrldbHaMsYGx5xiD4U5ClhkcZmM24G27nbjtfmMDA28DQ4LBASK0GP5tO5e4DWTLXyK1MD7mbTsA1sJMrC2Mj2XbksFaDssckzDcQFDL+WMMB9+22QG1MB98+KbGRp6gLSgAqFiCFPWjYBSMglEwCnABAFbaQDE0BPihAAAAAElFTkSuQmCC","orcid":"https://orcid.org/0000-0002-9139-2876","institution":"UGC DAE CSR Indore","correspondingAuthor":true,"prefix":"","firstName":"Satyendra","middleName":"","lastName":"Singh","suffix":""},{"id":465185570,"identity":"38bcc603-8135-42fe-a0e5-8264830754be","order_by":1,"name":"R. 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The TMs are known to preserve the non-trivial surface states (SS) which have emerged for exploring the exotic superconducting properties induced by the proximity effect. The observed superconductivity (proximity \u0026amp; inverse proximity) induced due to the mutual competition between the robust SS of TMs and sub energy gap of SCs. \u0026nbsp;This strong competition between the electron-electron interaction (EEI) and cooper pairs correlation lead to proximity (inverse proximity) superconductivity if SC energy gap is dominant over EEI or vice versa (if rapidly mobile Dirac electrons break the phase coherence of cooper pairs at the interface (EEI\u0026gt;SC gap)) as discussed in this article. The subsequent changes discussed in the superconducting proximity with perpendicular and parallel magnetic field (M.F) makes this work very interesting due to the field dependence mechanism. \u0026nbsp;The superconducting onset temperature is found to be (T\u003csub\u003ec\u003c/sub\u003e\u003csup\u003eonset\u003c/sup\u003e) ~4.1 K with the upper critical field (H\u003csub\u003ec2\u003c/sub\u003e) ~1541 Oersted which is accordance with Ginzburg Landau Theory (GLT) observed in Sb\u003csub\u003e2\u003c/sub\u003eTe\u003csub\u003e3\u0026nbsp;\u003c/sub\u003econtacted with s-wave SC indium.\u0026nbsp;\u003c/p\u003e","manuscriptTitle":"Proximity Induced Superconductivity in Antimony Telluride Single Crystal by an Interplay of Indium contacts","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-06-03 10:40:19","doi":"10.21203/rs.3.rs-6801241/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"1e7d00e5-c316-4011-a811-d58774b8d77a","owner":[],"postedDate":"June 3rd, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[{"id":49381246,"name":"Soft Condensed-matter Physics"}],"tags":[],"updatedAt":"2025-06-03T10:40:19+00:00","versionOfRecord":[],"versionCreatedAt":"2025-06-03 10:40:19","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-6801241","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-6801241","identity":"rs-6801241","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}