{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/magnetic-field-sorting-of-superconducting","title":"Magnetic field sorting of superconducting graphite particles with T$_c$$>$400K","arxiv_id":"2410.18020","date":"2024-10-23","proceeding":null,"authors":["Manuel Núñez-Regueiro","Thibaut Devillers","Eric Beaugnon","Armand de Marles","Thierry Crozes","Sébastien Pairis","Christopher Swale","Holger Klein","Olivier Leynaud","Abdelali Hadj-Azzem","Frédéric Gay","Didier Dufeu"],"abstract":"It has been claimed that graphite hosts superconductivity at room temperature, although all efforts to isolate it have been vain. Here we report a separation method that uses magnetic field gradients to sort the superconducting from normal grains out of industrial graphite powders. We have obtained a concentrate of above room temperature superconducting particles. Electrical resistance measurements on agglomerates of sorted grains of three types of graphite show transition temperatures up to T$_{c{_{onset}}} \\sim$ 700K with zero resistance up to $\\sim$ 500K. Magnetization measurements confirm these values through jumps at \\textit{T$_c$} in the zero field cooled curves, and by the occurrence diamagnetic hysteretic cycles shrinking with temperature. Our results open the door towards the study of above room temperature superconducting ill-stacked graphite phases.","url_abs":"https://arxiv.org/abs/2410.18020v1","url_pdf":"https://arxiv.org/pdf/2410.18020v1.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"links_only","authors_date_abstract":"arXiv metadata, CC0 1.0 (https://info.arxiv.org/help/license), from the Kaggle arXiv metadata snapshot of 2026-09-12"},"code_links":[{"paper_slug":"magnetic-field-sorting-of-superconducting","repo_url":"https://github.com/zhaoolee/garss","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"pytorch","reach":{"status":"ok"}}],"tasks":[],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"syntology_url":null,"atlas_url":null,"mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}