{"id":203780,"date":"2025-01-15T04:10:37","date_gmt":"2025-01-15T10:10:37","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/01\/quantum-breakthrough-may-lead-to-sustainable-chiral-spintronics"},"modified":"2025-01-15T04:10:37","modified_gmt":"2025-01-15T10:10:37","slug":"quantum-breakthrough-may-lead-to-sustainable-chiral-spintronics","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/01\/quantum-breakthrough-may-lead-to-sustainable-chiral-spintronics","title":{"rendered":"Quantum breakthrough may lead to sustainable chiral spintronics"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/quantum-breakthrough-may-lead-to-sustainable-chiral-spintronics.jpg\"><\/a><\/p>\n<p>A team of physicists led by The City College of New York\u2019s Lia Krusin-Elbaum has developed a novel technique that uses hydrogen cations (H<sup>+<\/sup>) to manipulate relativistic electronic bandstructures in a magnetic Weyl semimetal\u2014a topological material where electrons mimic massless particles called Weyl fermions. These particles are distinguished by their chirality or \u201chandedness\u201d linked to their spin and momentum.<\/p>\n<p>In the magnetic material MnSb\u2082Te\u2084, researchers unveiled a fascinating ability to \u201ctune\u201d and enhance the chirality of electronic transport by introducing <a href=\"https:\/\/phys.org\/tags\/hydrogen+ions\/\" rel=\"tag\" class=\"\">hydrogen ions<\/a>, reshaping on-demand the energy landscapes\u2014called Weyl nodes\u2014within the material. This finding could open a breadth of new quantum device platforms for harnessing emergent topological states for novel chiral nano-spintronics and fault-tolerant quantum computing. Entitled \u201cTransport chirality generated by a tunable tilt of Weyl nodes in a van der Waals topological magnet,\u201d the study appears in the journal <a href=\"https:\/\/www.nature.com\/articles\/s41467-024-53319-w\" target=\"_blank\"><i>Nature Communications<\/i><\/a>.<\/p>\n<p>The tuning of Weyl nodes with H<sup>+<\/sup> heals the system\u2019s (Mn-Te) bond disorder and lowers the internode scattering. In this process\u2014which The City College team tests in the Krusin Lab using angularly-resolved electrical transport\u2014electrical charges move differently when the in-plane <a href=\"https:\/\/phys.org\/tags\/magnetic+field\/\" rel=\"tag\" class=\"\">magnetic field<\/a> is rotated clockwise or counterclockwise, generating desirable low-dissipation currents. The reshaped Weyl states feature a doubled Curie temperature and a strong angular transport chirality synchronous with a rare field-antisymmetric longitudinal resistance\u2014a low-field tunable \u2018chiral switch\u2019 that is rooted in the interplay of topological Berry curvature, chiral anomaly and a hydrogen-mediated form of Weyl nodes.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A team of physicists led by The City College of New York\u2019s Lia Krusin-Elbaum has developed a novel technique that uses hydrogen cations (H+) to manipulate relativistic electronic bandstructures in a magnetic Weyl semimetal\u2014a topological material where electrons mimic massless particles called Weyl fermions. These particles are distinguished by their chirality or \u201chandedness\u201d linked to [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1523,4,48,1617,17],"tags":[],"class_list":["post-203780","post","type-post","status-publish","format-standard","hentry","category-computing","category-nanotechnology","category-particle-physics","category-quantum-physics","category-sustainability"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/203780","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\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=203780"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/203780\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=203780"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=203780"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=203780"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}