Flux jumps, cluster distribution model and vortex phase diagram of oxygenated YBa2Cu3−xAlxO6+δ single crystal for H || ab

Flux jumps, cluster distribution model and vortex phase diagram of oxygenated YBa2Cu3−xAlxO6+δ single crystal for H || ab | 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 Flux jumps, cluster distribution model and vortex phase diagram of oxygenated YBa2Cu3−xAlxO6+δ single crystal for H || ab Ashna Babu, Sruthy S. P., D. Jaiswal-Nagar This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4691762/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 28 Dec, 2024 Read the published version in Scientific Reports → Version 1 posted 25 You are reading this latest preprint version Abstract Flux jumps were observed in the magnetisation hysteresis loops of a single crystal of an oxygenated high temperature superconductor YBa2Cu3−xAlxO6+δ at fields similar to which symmetry reorientation transitions have been observed in small angle neutron scattering measurements of YBa2Cu3O6+δ previously. Bean’s critical state model was found to be insufficient to explain the observation of the flux jumps at fields larger than the field of full penetration. From x-ray photoelectron spectroscopy measurements, a single peak was observed in the spectra of Y, Ba, Cu and O, unlike the previous observation of double peaks in as-grown and oxygenated crystals. An aluminium substituted, oxygen vacant clusters of the kind (Al-O-Cu-..) n has been schematically made to explain the observation of the single peak in the XPS spectra. Similar to the observation of a field direction dependence in the as-grown crystal for µ0H || c, the second magnetisation peak anomaly was observed to have a field direction dependence for µ0H || ab, but only at low temperatures. At temperatures larger than 25 K, the second magnetisation peak anomaly was found to be field direction independent. The onset and peak fields were found to comply to an order-disorder transition at such fields and temperatures. The flux jump line was also found to fit with an order-disorder transition suggesting an intimate link between symmetry reorientation transition and the state of spatial order in the vortex lattice of oxygenated YBa2Cu3−xAlxO6+δ single crystal µ0H || ab. Incorporating all features in the magnetisation hysteresis loop, a vortex phase diagram has been made for oxygenated YBa2Cu3−xAlxO6+δ for µ0H || ab depicting various phases. Physical sciences/Physics/Condensed matter physics Physical sciences/Physics/Condensed matter physics/Superconducting properties and materials Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 28 Dec, 2024 Read the published version in Scientific Reports → Version 1 posted Editorial decision: Revision requested 22 Aug, 2024 Reviews received at journal 21 Aug, 2024 Reviews received at journal 21 Aug, 2024 Reviews received at journal 18 Aug, 2024 Reviews received at journal 18 Aug, 2024 Reviews received at journal 18 Aug, 2024 Reviews received at journal 15 Aug, 2024 Reviewers agreed at journal 09 Aug, 2024 Reviewers agreed at journal 08 Aug, 2024 Reviewers agreed at journal 08 Aug, 2024 Reviewers agreed at journal 08 Aug, 2024 Reviews received at journal 08 Aug, 2024 Reviewers agreed at journal 08 Aug, 2024 Reviewers agreed at journal 08 Aug, 2024 Reviewers agreed at journal 07 Aug, 2024 Reviewers agreed at journal 06 Aug, 2024 Reviewers agreed at journal 06 Aug, 2024 Reviewers agreed at journal 06 Aug, 2024 Reviewers agreed at journal 06 Aug, 2024 Reviewers agreed at journal 06 Aug, 2024 Reviewers invited by journal 06 Aug, 2024 Editor assigned by journal 05 Aug, 2024 Editor invited by journal 08 Jul, 2024 Submission checks completed at journal 05 Jul, 2024 First submitted to journal 05 Jul, 2024 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. 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Bean’s critical state model was found to be insufficient to explain the observation of the flux jumps at fields larger than the field of full penetration. From x-ray photoelectron spectroscopy measurements, a single peak was observed in the spectra of Y, Ba, Cu and O, unlike the previous observation of double peaks in as-grown and oxygenated crystals. An aluminium substituted, oxygen vacant clusters of the kind (Al-O-Cu-..) n has been schematically made to explain the observation of the single peak in the XPS spectra. Similar to the observation of a field direction dependence in the as-grown crystal for µ0H || c, the second magnetisation peak anomaly was observed to have a field direction dependence for µ0H || ab, but only at low temperatures. At temperatures larger than 25 K, the second magnetisation peak anomaly was found to be field direction independent. The onset and peak fields were found to comply to an order-disorder transition at such fields and temperatures. The flux jump line was also found to fit with an order-disorder transition suggesting an intimate link between symmetry reorientation transition and the state of spatial order in the vortex lattice of oxygenated YBa2Cu3−xAlxO6+δ single crystal µ0H || ab. Incorporating all features in the magnetisation hysteresis loop, a vortex phase diagram has been made for oxygenated YBa2Cu3−xAlxO6+δ for µ0H || ab depicting various phases.","manuscriptTitle":"Flux jumps, cluster distribution model and vortex phase diagram of oxygenated YBa2Cu3−xAlxO6+δ single crystal for H || ab","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-07-30 14:48:01","doi":"10.21203/rs.3.rs-4691762/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision 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