[{"file_date_updated":"2026-05-11T06:32:12Z","citation":{"ieee":"V. Zambra <i>et al.</i>, “Giant transverse magnetic fluctuations at the edge of re-entrant superconductivity in UTe2,” <i>Nature Communications</i>, vol. 17. Springer Nature, 2026.","apa":"Zambra, V., Nathwani, A., Nauman, M., Lewin, S. K., Frank, C. E., Butch, N. P., … Modic, K. A. (2026). Giant transverse magnetic fluctuations at the edge of re-entrant superconductivity in UTe2. <i>Nature Communications</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41467-026-71899-7\">https://doi.org/10.1038/s41467-026-71899-7</a>","ista":"Zambra V, Nathwani A, Nauman M, Lewin SK, Frank CE, Butch NP, Shekhter A, Ramshaw BJ, Modic KA. 2026. Giant transverse magnetic fluctuations at the edge of re-entrant superconductivity in UTe2. Nature Communications. 17, 3742.","short":"V. Zambra, A. Nathwani, M. Nauman, S.K. Lewin, C.E. Frank, N.P. Butch, A. Shekhter, B.J. Ramshaw, K.A. Modic, Nature Communications 17 (2026).","chicago":"Zambra, Valeska, Amit Nathwani, Muhammad Nauman, Sylvia K. Lewin, Corey E. Frank, Nicholas P. Butch, Arkady Shekhter, B. J. Ramshaw, and Kimberly A Modic. “Giant Transverse Magnetic Fluctuations at the Edge of Re-Entrant Superconductivity in UTe2.” <i>Nature Communications</i>. Springer Nature, 2026. <a href=\"https://doi.org/10.1038/s41467-026-71899-7\">https://doi.org/10.1038/s41467-026-71899-7</a>.","ama":"Zambra V, Nathwani A, Nauman M, et al. Giant transverse magnetic fluctuations at the edge of re-entrant superconductivity in UTe2. <i>Nature Communications</i>. 2026;17. doi:<a href=\"https://doi.org/10.1038/s41467-026-71899-7\">10.1038/s41467-026-71899-7</a>","mla":"Zambra, Valeska, et al. “Giant Transverse Magnetic Fluctuations at the Edge of Re-Entrant Superconductivity in UTe2.” <i>Nature Communications</i>, vol. 17, 3742, Springer Nature, 2026, doi:<a href=\"https://doi.org/10.1038/s41467-026-71899-7\">10.1038/s41467-026-71899-7</a>."},"date_updated":"2026-05-11T06:36:00Z","article_type":"original","quality_controlled":"1","department":[{"_id":"KiMo"},{"_id":"GradSch"}],"related_material":{"record":[{"status":"public","relation":"research_data","id":"21174"}]},"tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"_id":"21845","publisher":"Springer Nature","title":"Giant transverse magnetic fluctuations at the edge of re-entrant superconductivity in UTe2","status":"public","type":"journal_article","month":"04","has_accepted_license":"1","publication_status":"published","OA_type":"gold","scopus_import":"1","external_id":{"arxiv":["2506.08984"]},"author":[{"id":"467ed36b-dc96-11ea-b7c8-b043a380b282","orcid":"0000-0002-8806-5719","last_name":"Zambra","full_name":"Zambra, Valeska","first_name":"Valeska"},{"first_name":"Amit","full_name":"Nathwani, Amit","last_name":"Nathwani","id":"1a362536-4d02-11f1-8543-8351136efc50"},{"full_name":"Nauman, Muhammad","first_name":"Muhammad","last_name":"Nauman","orcid":"0000-0002-2111-4846","id":"32c21954-2022-11eb-9d5f-af9f93c24e71"},{"full_name":"Lewin, Sylvia K.","first_name":"Sylvia K.","last_name":"Lewin"},{"full_name":"Frank, Corey E.","first_name":"Corey E.","last_name":"Frank"},{"full_name":"Butch, Nicholas P.","first_name":"Nicholas P.","last_name":"Butch"},{"last_name":"Shekhter","full_name":"Shekhter, Arkady","first_name":"Arkady"},{"last_name":"Ramshaw","full_name":"Ramshaw, B. J.","first_name":"B. J."},{"last_name":"Modic","first_name":"Kimberly A","full_name":"Modic, Kimberly A","id":"13C26AC0-EB69-11E9-87C6-5F3BE6697425","orcid":"0000-0001-9760-3147"}],"OA_place":"publisher","publication_identifier":{"eissn":["2041-1723"]},"oa":1,"day":"29","language":[{"iso":"eng"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","file":[{"date_created":"2026-05-11T06:32:12Z","file_size":1784917,"relation":"main_file","success":1,"file_id":"21850","date_updated":"2026-05-11T06:32:12Z","content_type":"application/pdf","access_level":"open_access","file_name":"2026_NatureComm_Zambra.pdf","creator":"dernst","checksum":"8cb95b033ad2a1a7a8181f6f078c05b5"}],"date_published":"2026-04-29T00:00:00Z","article_processing_charge":"Yes","publication":"Nature Communications","acknowledged_ssus":[{"_id":"NanoFab"}],"doi":"10.1038/s41467-026-71899-7","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 neutron scattering shows instead that the magnetic susceptibility is peaked at an antiferromagnetic wavevector. 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. Because our technique probes the magnetic susceptibility in the long wavelength (q = 0) limit, this suggests that the strong transverse susceptibility arises from ferromagnetic spin fluctuations. These ferromagnetic fluctuations are likely important for understanding the pairing mechanism in UTe2, as all three superconducting phases of UTe2 surround this region of enhanced susceptibility in the field-angle phase diagram.","lang":"eng"}],"intvolume":"        17","arxiv":1,"year":"2026","acknowledgement":"We appreciate technical support from Salvatore Bagiante, Evgeniia Volobueva, Lubuna Shafeek, Ali Bangura, and Zoltán Köllö, and scientific discussions with Daniel Agterberg, Johnpierre Paglione, Qimiao Si, Josephine Yu and Yue Yu. V.Z., A.N., M.N., and K.A.M. acknowledge funding received from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (TROPIC-101078696). V.Z., A.N., M.N., and K.A.M. thank the ISTA Nanofabrication Facility for technical support. B.J.R. acknowledges funding from the Office of Basic Energy Sciences of the United States Department of Energy under award number DE-SC0020143 for data analysis and writing. The National High Magnetic Field Laboratory is supported by the National Science Foundation through NSF/DMR-2128556*, the State of Florida, and the U.S. Department of Energy. A.S. acknowledges support from the DOE/BES “Science of 100 T” grant. A.S. thanks Downtown Subscription in Santa Fe, NM, for their patience in hosting him. Sample preparation and characterization were supported by the NSF through DMR-2105191.","oa_version":"Published Version","volume":17,"article_number":"3742","ddc":["530"],"DOAJ_listed":"1","project":[{"name":"Gaining leverage with spin liquids and superconductors","_id":"bd968c70-d553-11ed-ba76-cde40b0aba64","grant_number":"101078696"}],"corr_author":"1","PlanS_conform":"1","date_created":"2026-05-10T22:02:15Z"},{"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","file":[{"relation":"main_file","file_size":1416049,"date_created":"2022-08-05T06:13:19Z","file_id":"11728","success":1,"creator":"dernst","access_level":"open_access","file_name":"2022_NonlinearDyn_Aguilera.pdf","content_type":"application/pdf","date_updated":"2022-08-05T06:13:19Z","checksum":"7d80cdece4e1b1c2106e6772a9622f60"}],"oa":1,"publication_identifier":{"issn":["0924-090X"],"eissn":["1573-269X"]},"day":"01","language":[{"iso":"eng"}],"has_accepted_license":"1","publication_status":"published","scopus_import":"1","external_id":{"isi":["000784871800001"]},"author":[{"first_name":"Esteban","full_name":"Aguilera, Esteban","last_name":"Aguilera"},{"last_name":"Clerc","first_name":"Marcel G.","full_name":"Clerc, Marcel G."},{"first_name":"Valeska","full_name":"Zambra, Valeska","last_name":"Zambra","id":"467ed36b-dc96-11ea-b7c8-b043a380b282"}],"corr_author":"1","date_created":"2022-05-02T07:01:59Z","volume":108,"oa_version":"Published Version","ddc":["530"],"intvolume":"       108","year":"2022","acknowledgement":"The authors thank Enrique Calisto,Michal Kowalczyk, and Michel Ferre for fructified discussions. This work was funded by ANID—Millennium Science Initiative Program—ICN17_012. MGC is thankful for financial support from the Fondecyt 1210353 project.\r\nOpen access funding provided by Institute of Science and Technology (IST Austria).","date_published":"2022-06-01T00:00:00Z","publication":"Nonlinear Dynamics","article_processing_charge":"Yes (via OA deal)","doi":"10.1007/s11071-022-07396-5","abstract":[{"text":"Multistable systems are characterized by exhibiting domain coexistence, where each domain accounts for the different equilibrium states. In case these systems are described by vectorial fields, domains can be connected through topological defects. Vortices are one of the most frequent and studied topological defect points. Optical vortices are equally relevant for their fundamental features as beams with topological features and their applications in image processing, telecommunications, optical tweezers, and quantum information. A natural source of optical vortices is the interaction of light beams with matter vortices in liquid crystal cells. The rhythms that govern the emergence of matter vortices due to fluctuations are not established. Here, we investigate the nucleation mechanisms of the matter vortices in liquid crystal cells and establish statistical laws that govern them. Based on a stochastic amplitude equation, the law for the number of nucleated vortices as a function of anisotropy, voltage, and noise level intensity is set. Experimental observations in a nematic liquid crystal cell with homeotropic anchoring and a negative anisotropic dielectric constant under the influence of a transversal electric field show a qualitative agreement with the theoretical findings.","lang":"eng"}],"article_type":"original","file_date_updated":"2022-08-05T06:13:19Z","citation":{"ieee":"E. Aguilera, M. G. Clerc, and V. Zambra, “Vortices nucleation by inherent fluctuations in nematic liquid crystal cells,” <i>Nonlinear Dynamics</i>, vol. 108. Springer Nature, pp. 3209–3218, 2022.","apa":"Aguilera, E., Clerc, M. G., &#38; Zambra, V. (2022). Vortices nucleation by inherent fluctuations in nematic liquid crystal cells. <i>Nonlinear Dynamics</i>. Springer Nature. <a href=\"https://doi.org/10.1007/s11071-022-07396-5\">https://doi.org/10.1007/s11071-022-07396-5</a>","ista":"Aguilera E, Clerc MG, Zambra V. 2022. Vortices nucleation by inherent fluctuations in nematic liquid crystal cells. Nonlinear Dynamics. 108, 3209–3218.","short":"E. Aguilera, M.G. Clerc, V. Zambra, Nonlinear Dynamics 108 (2022) 3209–3218.","chicago":"Aguilera, Esteban, Marcel G. Clerc, and Valeska Zambra. “Vortices Nucleation by Inherent Fluctuations in Nematic Liquid Crystal Cells.” <i>Nonlinear Dynamics</i>. Springer Nature, 2022. <a href=\"https://doi.org/10.1007/s11071-022-07396-5\">https://doi.org/10.1007/s11071-022-07396-5</a>.","ama":"Aguilera E, Clerc MG, Zambra V. Vortices nucleation by inherent fluctuations in nematic liquid crystal cells. <i>Nonlinear Dynamics</i>. 2022;108:3209-3218. doi:<a href=\"https://doi.org/10.1007/s11071-022-07396-5\">10.1007/s11071-022-07396-5</a>","mla":"Aguilera, Esteban, et al. “Vortices Nucleation by Inherent Fluctuations in Nematic Liquid Crystal Cells.” <i>Nonlinear Dynamics</i>, vol. 108, Springer Nature, 2022, pp. 3209–18, doi:<a href=\"https://doi.org/10.1007/s11071-022-07396-5\">10.1007/s11071-022-07396-5</a>."},"date_updated":"2024-10-09T21:02:21Z","page":"3209-3218","keyword":["Electrical and Electronic Engineering","Applied Mathematics","Mechanical Engineering","Ocean Engineering","Aerospace Engineering","Control and Systems Engineering"],"publisher":"Springer Nature","title":"Vortices nucleation by inherent fluctuations in nematic liquid crystal cells","status":"public","month":"06","type":"journal_article","tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"isi":1,"_id":"11343","quality_controlled":"1","department":[{"_id":"KiMo"}]}]