{"id":112771,"date":"2020-09-09T09:24:16","date_gmt":"2020-09-09T16:24:16","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2020\/09\/kondo-physics-in-antiferromagnetic-weyl-semimetal-films"},"modified":"2020-09-09T09:24:16","modified_gmt":"2020-09-09T16:24:16","slug":"kondo-physics-in-antiferromagnetic-weyl-semimetal-films","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2020\/09\/kondo-physics-in-antiferromagnetic-weyl-semimetal-films","title":{"rendered":"Kondo physics in antiferromagnetic Weyl semimetal films"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/kondo-physics-in-antiferromagnetic-weyl-semimetal-films2.jpg\"><\/a><\/p>\n<p>Emerging quantum materials can be defined by topology and strong electron correlations, although their applications in experimental systems are relatively limited. Weyl semimetals incorporating magnetism offer a unique and fertile platform to explore emerging phenomena in developing topological matter and topological <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S1369702109702329\">spintronics<\/a>. The triangular <a href=\"https:\/\/www.nature.com\/articles\/s41467-019-10815-8\">antiferromagnet Mn<sub>3<\/sub>Sn<\/a> exhibits many exotic physical properties as an antiferromagnetic (AFM) <a href=\"https:\/\/www.annualreviews.org\/doi\/abs\/10.1146\/annurev-conmatphys-031016-025458\">Weyl semimetal<\/a> (WSM), including an attractively large <a href=\"https:\/\/phys.org\/search\/?search=spontaneous+Hall+effect&s=0\">spontaneous Hall effect<\/a>.<\/p>\n<p>The spontaneous Hall effect <a href=\"https:\/\/www.nature.com\/articles\/021361a0\">was discovered more than a century ago<\/a> and understood in terms of time-reversal symmetry breaking by the <a href=\"https:\/\/advances.sciencemag.org\/content\/6\/23\/eaaz8809\">internal spin structure of<\/a> antiferromagnetic, ferromagnetic or skyrmionic (small swirling topological defects in the magnetization) forms.<\/p>\n<p>In a new report now published on <i>Science Advances<\/i>, Durga Khadka and a team of scientists in physics, <a href=\"https:\/\/phys.org\/tags\/materials+science\/\" rel=\"tag\" class=\"\">materials science<\/a>, neutron research and engineering in the U.S. reported the synthesis of epitaxial Mn<sub>3+x <\/sub>Sn<sub>1\u2212x<\/sub> films with compositions similar to bulk samples. When they replaced the tin (Sn) atoms with magnetic manganese (Mn) atoms in the samples, they noted the <a href=\"https:\/\/www.sciencedirect.com\/topics\/chemistry\/kondo-effect\">Kondo effect<\/a>; a celebrated example of strong correlations to emerge, then develop coherence and induce a hybridization <a href=\"https:\/\/www.sciencedirect.com\/topics\/engineering\/energy-gap\">energy gap<\/a>. The process of magnetic doping and gap opening facilitated rich extraordinary properties for the new materials.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Emerging quantum materials can be defined by topology and strong electron correlations, although their applications in experimental systems are relatively limited. Weyl semimetals incorporating magnetism offer a unique and fertile platform to explore emerging phenomena in developing topological matter and topological spintronics. The triangular antiferromagnet Mn3Sn exhibits many exotic physical properties as an antiferromagnetic (AFM) [\u2026]<\/p>\n","protected":false},"author":513,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38,48,1617],"tags":[],"class_list":["post-112771","post","type-post","status-publish","format-standard","hentry","category-engineering","category-particle-physics","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/112771","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\/513"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=112771"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/112771\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=112771"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=112771"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=112771"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}