{"id":171065,"date":"2023-09-01T10:24:44","date_gmt":"2023-09-01T15:24:44","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2023\/09\/new-2-5-dimensional-structures-observed-in-twisted-graphite-hybrids"},"modified":"2023-09-01T10:24:44","modified_gmt":"2023-09-01T15:24:44","slug":"new-2-5-dimensional-structures-observed-in-twisted-graphite-hybrids","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2023\/09\/new-2-5-dimensional-structures-observed-in-twisted-graphite-hybrids","title":{"rendered":"New 2.5-dimensional structures observed in twisted graphite hybrids"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/new-2-5-dimensional-structures-observed-in-twisted-graphite-hybrids.jpg\"><\/a><\/p>\n<p>When two sheets of graphene are placed on top of each other and slightly twisted, their atoms form a moir\u00e9 pattern, or superlattice. At the so-called \u201cmagic\u201d twist angle of 1.08\u00b0, something unusual happens: the weak van der Waals (vdW) coupling between atoms in adjacent layers modifies the atoms\u2019 electronic states and transforms the material from a semimetal to a superconductor. The study of such twist-related electronic effects is known as \u201ctwistronics\u201d, and it also includes phenomena such as correlated insulator states that appear at different degrees of misalignment.<\/p>\n<p>Because the moir\u00e9 pattern that underlies twistronics appears only at the interface between two thin sheets, it was assumed that twistronic effects could only occur in structures containing just a few layers. Although it is possible to produce a moir\u00e9 pattern at a two-dimensional interface within a three-dimensional structure, it was thought that this pattern would not substantially modify the properties of the bulk material. After all, the 2D moir\u00e9 region would only comprise a small fraction of the total 3D crystal volume.<\/p>\n<p>New work by two research groups \u2013 one at the University of Washington in the US and Osaka University in Japan, the other at the University of Manchester in the UK \u2013 shows that this picture is not always correct. In fact, rotating a single layer of a 2D material by a small twist angle within a three-dimensional graphite film can cause the properties of the moir\u00e9 interface to become inextricably mixed with those of the graphite. The result is a new class of hybrid 2D-3D moir\u00e9 materials that substantially alters our understanding of how twistronics works.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>When two sheets of graphene are placed on top of each other and slightly twisted, their atoms form a moir\u00e9 pattern, or superlattice. At the so-called \u201cmagic\u201d twist angle of 1.08\u00b0, something unusual happens: the weak van der Waals (vdW) coupling between atoms in adjacent layers modifies the atoms\u2019 electronic states and transforms the material [\u2026]<\/p>\n","protected":false},"author":367,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1635,48],"tags":[],"class_list":["post-171065","post","type-post","status-publish","format-standard","hentry","category-materials","category-particle-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/171065","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/367"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=171065"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/171065\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=171065"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=171065"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=171065"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}