{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,6]],"date-time":"2026-11-06T02:18:10Z","timestamp":1793931490526,"version":"4.8.0"},"reference-count":51,"publisher":"IOP Publishing","issue":"40","license":[{"start":{"date-parts":[[2024,7,8]],"date-time":"2024-07-08T00:00:00Z","timestamp":1720396800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2024,7,8]],"date-time":"2024-07-08T00:00:00Z","timestamp":1720396800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"funder":[{"DOI":"10.13039\/100000183","name":"US Army Research Office","doi-asserted-by":"crossref","award":["W911NF-20-2- 0166"],"award-info":[{"award-number":["W911NF-20-2- 0166"]}],"id":[{"id":"10.13039\/100000183","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["J. Phys.: Condens. Matter"],"published-print":{"date-parts":[[2024,10,9]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>The interaction between topology and magnetism can lead to novel topological materials including Chern insulators, axion insulators, and Dirac and Weyl semimetals. In this work, a family of van der Waals layered materials using MnTe and Sb<jats:sub>2<\/jats:sub>Te<jats:sub>3<\/jats:sub> or Bi<jats:sub>2<\/jats:sub>Te<jats:sub>3<\/jats:sub> superlattices as building blocks are systematically examined in a search for antiferromagnetic Weyl semimetals, preferably with a simple node structure. The approach is based on controlling the strength of the exchange interaction as a function of layer composition to induce the phase transition between the topological and the normal insulators. Our calculations, utilizing a combination of first-principles density functional theory and tight-binding analyses based on maximally localized Wannier functions, clearly indicate a promising candidate for a type-I magnetic Weyl semimetal. This centrosymmetric material, Mn<jats:sub>10<\/jats:sub>Sb<jats:sub>8<\/jats:sub>Te<jats:sub>22<\/jats:sub> (or (MnTe)<jats:sub>\n                     <jats:italic>m<\/jats:italic>\n                  <\/jats:sub>(Sb<jats:sub>2<\/jats:sub>Te<jats:sub>3<\/jats:sub>)<jats:sub>\n                     <jats:italic>n<\/jats:italic>\n                  <\/jats:sub> with <jats:italic>m<\/jats:italic>\u2009=\u200910 and <jats:italic>n<\/jats:italic>\u2009=\u20094), shows ferromagnetic intralayer and antiferromagnetic interlayer interactions in the antiferromagnetic ground state. The obtained electronic bandstructure also exhibits a single pair of Weyl points in the spin-split bands consistent with a Weyl semimetal. The presence of Weyl nodes is further verified with Berry curvature, Wannier charge center, and surface state (i.e. Fermi arc) calculations. Other combinations of the MnSbTe-family materials are found to be antiferromagnetic topological or normal insulators on either side of the Mn:Sb ratio, respectively, illustrating the topological phase transition as anticipated. A similar investigation in the homologous (MnTe)<jats:sub>\n                     <jats:italic>m<\/jats:italic>\n                  <\/jats:sub>(Bi<jats:sub>2<\/jats:sub>Te<jats:sub>3<\/jats:sub>)<jats:sub>\n                     <jats:italic>n<\/jats:italic>\n                  <\/jats:sub> system produces mostly nontrivial antiferromagnetic insulators due to the strong spin\u2013orbit coupling. When realized, the antiferromagnetic Weyl semimetals in the simplest form (i.e. a single pair of Weyl nodes) are expected to provide a promising candidate for low-power spintronic applications.<\/jats:p>","DOI":"10.1088\/1361-648x\/ad5d3c","type":"journal-article","created":{"date-parts":[[2024,6,28]],"date-time":"2024-06-28T22:30:08Z","timestamp":1719613808000},"page":"405601","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":4,"title":["Search for an antiferromagnetic Weyl semimetal in (MnTe)<sub>\n                  m\n               <\/sub>(Sb<sub>2<\/sub>Te<sub>3<\/sub>)<sub>\n                  n\n               <\/sub> and (MnTe)<sub>\n                  m\n               <\/sub>(Bi<sub>2<\/sub>Te<sub>3<\/sub>)<sub>\n                  n\n               <\/sub> superlattices"],"prefix":"10.1088","volume":"36","author":[{"given":"James A","family":"Boulton","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1136-4726","authenticated-orcid":true,"given":"Ki Wook","family":"Kim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2024,7,8]]},"reference":[{"key":"cmad5d3cbib1","doi-asserted-by":"publisher","first-page":"6129","DOI":"10.1126\/science.1234414","article-title":"Experimental observation of the quantum anomalous Hall effect in a magnetic topological insulator","volume":"340","author":"Chang","year":"2013","journal-title":"Science"},{"key":"cmad5d3cbib2","doi-asserted-by":"publisher","first-page":"15","DOI":"10.1103\/PhysRevB.101.014423","article-title":"Pursuing the high-temperature quantum anomalous Hall effect in MnBi2Te4\/Sb2Te3 heterostructures","volume":"101","author":"Qi","year":"2020","journal-title":"Phys. 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Published by IOP Publishing Ltd","name":"copyright_information","label":"Copyright Information"},{"value":"2024-01-25","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2024-06-28","name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2024-07-08","name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}