{"id":11869,"date":"2026-01-22T15:15:18","date_gmt":"2026-01-22T14:15:18","guid":{"rendered":"https:\/\/fermi.univ-tlse3.fr\/?post_type=tribe_events&#038;p=11869"},"modified":"2026-01-22T15:31:04","modified_gmt":"2026-01-22T14:31:04","slug":"probing-the-strange-metal-phase-of-a-cuprate-with-nuclear-magnetic-resonance-benjamin-costarella-lncmi-seminar-22-01-2026-14h","status":"publish","type":"tribe_events","link":"https:\/\/fermi.univ-tlse3.fr\/fr\/home\/event\/probing-the-strange-metal-phase-of-a-cuprate-with-nuclear-magnetic-resonance-benjamin-costarella-lncmi-seminar-22-01-2026-14h\/","title":{"rendered":"Probing the Strange Metal phase of a cuprate with nuclear magnetic resonance. &#8211; (Benjamin Costarella \/  LNCMI \/ Seminar). &#8211; 22\/01\/2026, 14H"},"content":{"rendered":"<p><span style=\"font-size: 20px; background-color: #f18500;\">Seminar LNCMI<\/span><\/p>\n<p><span style=\"font-size: 20px;\"><span style=\"color: #191970;\"><strong>Benjamin Costarella <\/strong><\/span>,\u00a01st year PhD student of Marc-Henri Julien<\/span><\/p>\n<p><span style=\"background-color: #cecece;\">Seminar LNCMI, 22\/01\/2026, 14H, <strong>Visio<\/strong><\/span><\/p>\n<p><span style=\"font-size: 20px;\"><span style=\"color: #191970;\"><strong>Abstract<\/strong><\/span><\/span><br \/>\nCuprates (high-temperature superconductors) host in their phase diagram a so-called strange metal regime at doping levels beyond the pseudogap phase.<br \/>\nIn this regime, the electrical resistivity is linear in temperature down to the lowest temperatures, in contrast with the quadratic dependence in conventional metals. <strong>[1]<\/strong><\/p>\n<p>The spin fluctuations in the strange metal regime have been sparsely investigated, and the two nuclear magnetic resonance (NMR) studies in the litterature <strong>[2,3]<\/strong> are partly contradictory, hindering a coherent picture of the strange metal phase.<\/p>\n<p>Here, we probe the low-energy spin fluctuations in the cuprate La1.75Sr0.25CuO4 using NMR and high magnetic fields to suppress superconductivity. Our results uncover a divergent dynamical spin susceptibility at low frequency \u03c7\u2032\u2032 (Q,\u03c9\u21920) not captured in earlier studies, pointing to a possible connection between low-energy spin dynamics and the strange metal phenomenology.\u00a0\u00bb<\/p>\n<p><strong>[1]<\/strong> Cooper et al. Science, 323, 5914. pp. 603-607 (2009)<br \/>\n<strong>[2]<\/strong> Ohsugi et al. JPSJ, 63, 2, pp. 700-715 (1993)<br \/>\n<strong>[3]<\/strong> Itoh et al. JPSJ, 67, 9, pp. 3018-3020 (1998)<\/p>\n<p><strong>Lien Zoom<\/strong> :\u00a0<a href=\"https:\/\/univ-grenoble-alpes-fr.zoom.us\/j\/94228207316?pwd=khTdznxeFy1ZUYkYftQ0QSox6Fz3iK.1\">https:\/\/univ-grenoble-alpes-fr.zoom.us\/j\/94228207316?pwd=khTdznxeFy1ZUYkYftQ0QSox6Fz3iK.1<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Visio<\/p>\n","protected":false},"author":5,"featured_media":0,"template":"","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","neve_meta_reading_time":"","_tribe_events_status":"","_tribe_events_status_reason":"","footnotes":""},"tags":[],"tribe_events_cat":[48,311,233],"class_list":["post-11869","tribe_events","type-tribe_events","status-publish","hentry","tribe_events_cat-events","tribe_events_cat-lncmi","tribe_events_cat-seminars","cat_events","cat_lncmi","cat_seminars"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Probing the Strange Metal phase of a cuprate with nuclear magnetic resonance. - (Benjamin Costarella \/ LNCMI \/ Seminar). - 22\/01\/2026, 14H - FeRMI<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fermi.univ-tlse3.fr\/fr\/home\/event\/probing-the-strange-metal-phase-of-a-cuprate-with-nuclear-magnetic-resonance-benjamin-costarella-lncmi-seminar-22-01-2026-14h\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Probing the Strange Metal phase of a cuprate with nuclear magnetic resonance. - (Benjamin Costarella \/ LNCMI \/ Seminar). - 22\/01\/2026, 14H - FeRMI\" \/>\n<meta property=\"og:description\" content=\"Visio\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fermi.univ-tlse3.fr\/fr\/home\/event\/probing-the-strange-metal-phase-of-a-cuprate-with-nuclear-magnetic-resonance-benjamin-costarella-lncmi-seminar-22-01-2026-14h\/\" \/>\n<meta property=\"og:site_name\" content=\"FeRMI\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-22T14:31:04+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/fermi.univ-tlse3.fr\\\/fr\\\/home\\\/event\\\/probing-the-strange-metal-phase-of-a-cuprate-with-nuclear-magnetic-resonance-benjamin-costarella-lncmi-seminar-22-01-2026-14h\\\/\",\"url\":\"https:\\\/\\\/fermi.univ-tlse3.fr\\\/fr\\\/home\\\/event\\\/probing-the-strange-metal-phase-of-a-cuprate-with-nuclear-magnetic-resonance-benjamin-costarella-lncmi-seminar-22-01-2026-14h\\\/\",\"name\":\"Probing the Strange Metal phase of a cuprate with nuclear magnetic resonance. - (Benjamin Costarella \\\/ LNCMI \\\/ Seminar). - 22\\\/01\\\/2026, 14H - FeRMI\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/fermi.univ-tlse3.fr\\\/fr\\\/home\\\/#website\"},\"datePublished\":\"2026-01-22T14:15:18+00:00\",\"dateModified\":\"2026-01-22T14:31:04+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/fermi.univ-tlse3.fr\\\/fr\\\/home\\\/event\\\/probing-the-strange-metal-phase-of-a-cuprate-with-nuclear-magnetic-resonance-benjamin-costarella-lncmi-seminar-22-01-2026-14h\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/fermi.univ-tlse3.fr\\\/fr\\\/home\\\/event\\\/probing-the-strange-metal-phase-of-a-cuprate-with-nuclear-magnetic-resonance-benjamin-costarella-lncmi-seminar-22-01-2026-14h\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/fermi.univ-tlse3.fr\\\/fr\\\/home\\\/event\\\/probing-the-strange-metal-phase-of-a-cuprate-with-nuclear-magnetic-resonance-benjamin-costarella-lncmi-seminar-22-01-2026-14h\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u00c9v\u00e8nements\",\"item\":\"https:\\\/\\\/fermi.univ-tlse3.fr\\\/events\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Probing the Strange Metal phase of a cuprate with nuclear magnetic resonance. &#8211; 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