Nb-based Josephson junctions with Bi2Sr2CaCu2O8+δ as the barrier

Nb-based Josephson junctions with Bi2Sr2CaCu2O8+δ as the barrier | 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 Nb-based Josephson junctions with Bi2Sr2CaCu2O8+δ as the barrier Shixian Chen, Tian Wanghao, Zuyu Xu This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7637846/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 We fabricated Josephson junctions with two-dimensional (2D) non-superconducting Bi 2 Sr 2 CaCu 2 O 8+δ (Bi-2212) crystal flakes between Nb film. We provide a solution to get clean non-superconducting Bi-2212 flakes from optimal doping, and develop a fabrication process to make such Nb/Bi-2212 flakes/Nb Josephson heterostructures. A good Fraunhofer-like critical current modulation under magnetic fields could be observed where the shape of the junction area has been taken into account, indicating a relatively homogeneous supercurrent profile through junction. Fractional Shapiro steps could be observed, suggesting some unconventional properties in such a structure. Hopefully, the potential value for novel electronic devices like the Josephson transistor will be seen in this kind of junctions. Our work has led to the development of a novel quantum device based on the two-dimensional material BSCCO, paving the way for next-generation superconducting integrated circuits utilizing 2D materials. Full Text Additional Declarations No competing interests reported. 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. 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-7637846","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":521165643,"identity":"b19ef46f-5594-48e3-8ab2-a5538b3a871f","order_by":0,"name":"Shixian 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barrier","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research 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Our work has led to the development of a novel quantum device based on the two-dimensional material BSCCO, paving the way for next-generation superconducting integrated circuits utilizing 2D materials.\u003c/p\u003e","manuscriptTitle":"Nb-based Josephson junctions with Bi2Sr2CaCu2O8+δ as the barrier","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-10-01 15:15:12","doi":"10.21203/rs.3.rs-7637846/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":"3414c6c8-2e78-4f78-a4fb-31af87e76e5e","owner":[],"postedDate":"October 1st, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2025-12-22T14:53:44+00:00","versionOfRecord":[],"versionCreatedAt":"2025-10-01 15:15:12","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-7637846","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-7637846","identity":"rs-7637846","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}