{"id":9228,"date":"2021-06-15T15:17:00","date_gmt":"2021-06-15T13:17:00","guid":{"rendered":"https:\/\/lncmi.cnrs.fr\/?p=9228"},"modified":"2025-06-12T15:58:24","modified_gmt":"2025-06-12T13:58:24","slug":"locally-commensurate-charge-density-wave-in-ybco","status":"publish","type":"post","link":"https:\/\/lncmi.cnrs.fr\/en\/news\/locally-commensurate-charge-density-wave-in-ybco\/","title":{"rendered":"Locally commensurate charge-density wave in YBCO"},"content":{"rendered":"\n<p>The ubiquity of charge-density waves (CDW) in cuprate superconductors is now well established but key aspects of their microscopic structure are not clear yet.<\/p>\n\n\n\n<p>In this work, we used nuclear magnetic resonance (NMR) to study the CDW induced by intense magnetic fields in the superconducting state of YBa<sub>2<\/sub>Cu<sub>3<\/sub>O<sub>y<\/sub>. Being devoid of strong disorder effects, magnetic ordering and competition with superconductivity, this phase is likely to represent the paradigmatic form of CDW in the cuprates.<\/p>\n\n\n\n<p>We show that this CDW is oxygen-centered, propagates along a single direction and has a local commensurate period of three unit cells, locked to the lattice, despite its incommensurate global periodicity measured in X-ray scattering and possibly dictated by the Fermi surface.<\/p>\n\n\n\n<p><strong>Publication<\/strong> &#8211; <strong>Locally commensurate charge-density wave with three-unit-cell periodicity in YBCO<\/strong>Vinograd, I. <em>et al.<\/em> <a href=\"https:\/\/doi.org\/10.1038\/s41467-021-23140-w\"><em>Nat Commun<\/em> <strong>12, <\/strong>3274 (2021)<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"499\" height=\"339\" src=\"https:\/\/lncmi.cnrs.fr\/wp-content\/uploads\/2024\/06\/Actualite\u00b4062020.png\" alt=\"\" class=\"wp-image-9229\" style=\"width:400px\" srcset=\"https:\/\/lncmi.cnrs.fr\/wp-content\/uploads\/2024\/06\/Actualite\u00b4062020.png 499w, https:\/\/lncmi.cnrs.fr\/wp-content\/uploads\/2024\/06\/Actualite\u00b4062020-300x204.png 300w, https:\/\/lncmi.cnrs.fr\/wp-content\/uploads\/2024\/06\/Actualite\u00b4062020-480x326.png 480w, https:\/\/lncmi.cnrs.fr\/wp-content\/uploads\/2024\/06\/Actualite\u00b4062020-280x190.png 280w\" sizes=\"(max-width: 499px) 100vw, 499px\" \/><\/figure>\n\n\n\n<p><strong>Figure &#8211;<\/strong> representative 17O NMR line shape in YBa2Cu3O6.56 at T\u2009=\u20092 K and B\u00a0\u00bb\u00a028 T. The 2:1 relative area of the two peaks is evidence that the local CDW period is three unit-cell long<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The ubiquity of charge-density waves (CDW) in cuprate superconductors is now well established but key aspects of their microscopic structure are not clear yet. In this work, we used nuclear [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":22382,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[292],"tags":[],"post_folder":[],"class_list":["post-9228","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"jetpack_featured_media_url":"https:\/\/lncmi.cnrs.fr\/wp-content\/uploads\/2021\/06\/Actualite062020.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/lncmi.cnrs.fr\/en\/wp-json\/wp\/v2\/posts\/9228","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lncmi.cnrs.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lncmi.cnrs.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lncmi.cnrs.fr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lncmi.cnrs.fr\/en\/wp-json\/wp\/v2\/comments?post=9228"}],"version-history":[{"count":0,"href":"https:\/\/lncmi.cnrs.fr\/en\/wp-json\/wp\/v2\/posts\/9228\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lncmi.cnrs.fr\/en\/wp-json\/wp\/v2\/media\/22382"}],"wp:attachment":[{"href":"https:\/\/lncmi.cnrs.fr\/en\/wp-json\/wp\/v2\/media?parent=9228"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lncmi.cnrs.fr\/en\/wp-json\/wp\/v2\/categories?post=9228"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lncmi.cnrs.fr\/en\/wp-json\/wp\/v2\/tags?post=9228"},{"taxonomy":"post_folder","embeddable":true,"href":"https:\/\/lncmi.cnrs.fr\/en\/wp-json\/wp\/v2\/post_folder?post=9228"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}