[{"_id":"21174","month":"02","type":"research_data","date_updated":"2026-05-11T06:35:59Z","acknowledgement":"Thanks to Salvatore Bagiante, Evgeniia Volobueva, Lubuna Shafeek, Ali Bangura and Zoltan Kollo.","OA_place":"repository","tmp":{"image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"day":"19","year":"2026","status":"public","title":"Research data for \"Giant transverse magnetic fluctuations at the edge of re-entrant superconductivity in UTe2\"","user_id":"68b8ca59-c5b3-11ee-8790-cd641c68093d","file_date_updated":"2026-02-19T07:39:07Z","project":[{"name":"Gaining leverage with spin liquids and superconductors","grant_number":"101078696","_id":"bd968c70-d553-11ed-ba76-cde40b0aba64"}],"abstract":[{"text":"UTe2 exhibits the remarkable phenomenon of re-entrant superconductivity, whereby the zero-resistance state reappears above 40 tesla after being suppressed with a field of around 10 tesla. One potential pairing mechanism, invoked in the related re-entrant superconductors UCoGe and URhGe, involves transverse fluctuations of a ferromagnetic order parameter. However, the requisite ferromagnetic order - present in both UCoGe and URhGe - is absent in UTe2, and magnetization measurements show no sign of strong fluctuations. Here, we measure the magnetotropic susceptibility of UTe2 across two field-angle planes. This quantity is sensitive to the magnetic susceptibility in a direction transverse to the applied magnetic field - a quantity that is not accessed in conventional magnetization measurements. We observe a very large decrease in the magnetotropic susceptibility over a broad range of field orientations, indicating a large increase in the transverse magnetic susceptibility. The three superconducting phases of UTe2, including the high-field re-entrant phase, surround this region of enhanced susceptibility in the field-angle phase diagram. The strongest transverse susceptibility is found near the critical end point of the high-field metamagnetic transition, suggesting that quantum critical fluctuations of a field-induced magnetic order parameter may be responsible for the large transverse susceptibility, and may provide a pairing mechanism for field-induced superconductivity in UTe2.","lang":"eng"}],"citation":{"short":"K.A. Modic, (2026).","ista":"Modic KA. 2026. Research data for ‘Giant transverse magnetic fluctuations at the edge of re-entrant superconductivity in UTe2’, Institute of Science and Technology Austria, <a href=\"https://doi.org/10.15479/AT-ISTA-21174\">10.15479/AT-ISTA-21174</a>.","chicago":"Modic, Kimberly A. “Research Data for ‘Giant Transverse Magnetic Fluctuations at the Edge of Re-Entrant Superconductivity in UTe2.’” Institute of Science and Technology Austria, 2026. <a href=\"https://doi.org/10.15479/AT-ISTA-21174\">https://doi.org/10.15479/AT-ISTA-21174</a>.","ama":"Modic KA. Research data for “Giant transverse magnetic fluctuations at the edge of re-entrant superconductivity in UTe2.” 2026. doi:<a href=\"https://doi.org/10.15479/AT-ISTA-21174\">10.15479/AT-ISTA-21174</a>","apa":"Modic, K. A. (2026). Research data for “Giant transverse magnetic fluctuations at the edge of re-entrant superconductivity in UTe2.” Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/AT-ISTA-21174\">https://doi.org/10.15479/AT-ISTA-21174</a>","mla":"Modic, Kimberly A. <i>Research Data for “Giant Transverse Magnetic Fluctuations at the Edge of Re-Entrant Superconductivity in UTe2.”</i> Institute of Science and Technology Austria, 2026, doi:<a href=\"https://doi.org/10.15479/AT-ISTA-21174\">10.15479/AT-ISTA-21174</a>.","ieee":"K. A. Modic, “Research data for ‘Giant transverse magnetic fluctuations at the edge of re-entrant superconductivity in UTe2.’” Institute of Science and Technology Austria, 2026."},"publisher":"Institute of Science and Technology Austria","corr_author":"1","date_published":"2026-02-19T00:00:00Z","ddc":["530"],"oa_version":"Published Version","department":[{"_id":"KiMo"}],"file":[{"file_name":"README.txt","checksum":"53157d908fba663275c2b8dc6ee84fdb","creator":"kmodic","date_created":"2026-02-19T07:38:15Z","success":1,"file_id":"21332","content_type":"text/plain","relation":"main_file","date_updated":"2026-02-19T07:38:15Z","file_size":1347,"access_level":"open_access"},{"access_level":"open_access","file_size":534853,"date_updated":"2026-02-19T07:39:03Z","relation":"main_file","content_type":"application/zip","file_id":"21333","success":1,"creator":"kmodic","date_created":"2026-02-19T07:39:03Z","checksum":"b2c8ca5620ee9c181a42082068d3d73c","file_name":"processed_data_bc_plane_Fig2d.zip"},{"relation":"main_file","content_type":"application/zip","file_id":"21334","checksum":"976bf113da4b1133313f0b292e71289f","date_created":"2026-02-19T07:39:07Z","creator":"kmodic","success":1,"file_name":"processed_data_ac_plane_Fig2c.zip","access_level":"open_access","file_size":427144,"date_updated":"2026-02-19T07:39:07Z"}],"OA_type":"free access","oa":1,"related_material":{"record":[{"relation":"used_in_publication","id":"21845","status":"public"}],"link":[{"relation":"preprint","url":"https://arxiv.org/pdf/2506.08984"}]},"author":[{"first_name":"Kimberly A","full_name":"Modic, Kimberly A","last_name":"Modic","orcid":"0000-0001-9760-3147","id":"13C26AC0-EB69-11E9-87C6-5F3BE6697425"}],"date_created":"2026-02-09T12:04:20Z","keyword":["transverse magnetic susceptibility","magnetotropic","superconductivity","magnetic fluctuations"],"contributor":[{"contributor_type":"project_member","first_name":"Valeska","orcid":"0000-0002-8806-5719","id":"467ed36b-dc96-11ea-b7c8-b043a380b282","last_name":"Zambra"}],"has_accepted_license":"1","acknowledged_ssus":[{"_id":"NanoFab"}],"article_processing_charge":"Yes","doi":"10.15479/AT-ISTA-21174"}]