{"id":46741,"date":"2025-05-04T17:52:13","date_gmt":"2025-05-04T12:22:13","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=46741"},"modified":"2025-05-19T17:53:35","modified_gmt":"2025-05-19T12:23:35","slug":"altermagnets-spintronics-and-valleytronics","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/altermagnets-spintronics-and-valleytronics\/","title":{"rendered":"Altermagnets, Spintronics &#038; Valleytronics"},"content":{"rendered":"<h2>Altermagnets, Spintronics &amp; Valleytronics Latest News<\/h2>\n<p>A research team led by the Hong Kong University of Science and Technology (HKUST) has reported the first-ever experimental observation of a two-dimensional layered room-temperature altermagnet.<\/p>\n<h2>About Altermagnets<\/h2>\n<ul>\n<li><strong>Altermagnets<\/strong>\u00a0are a new class of antiferromagnetic materials that\u00a0<strong>exhibit momentum-dependent spin splitting without requiring spin\u2013orbit coupling (SOC)<\/strong>\u00a0or\u00a0<strong>net magnetization<\/strong>.<\/li>\n<li>This novel spin splitting mechanism arises due to\u00a0<strong>exchange interactions between crystal-symmetry-connected magnetic sublattices<\/strong>, creating a phenomenon known as\u00a0<strong>C-paired spin-valley locking (SVL)<\/strong>.<\/li>\n<li><strong>Altermagnetism<\/strong>\u00a0combines the\u00a0<strong>long spin lifetimes and magnetic stability<\/strong>\u00a0of antiferromagnets with the\u00a0<strong>advantage of spin-split energy bands<\/strong>, making them ideal for\u00a0<strong>spintronic applications<\/strong>.<\/li>\n<\/ul>\n<h2>About Spintronics<\/h2>\n<ul>\n<li><strong>Spintronics<\/strong>\u00a0(short for\u00a0<strong>spin transport electronics<\/strong>) is a field of electronics that utilises both the\u00a0<strong>intrinsic spin and charge of electrons<\/strong>\u00a0to store, process, and transfer data.<\/li>\n<li>It offers\u00a0<strong>faster processing speeds<\/strong>,\u00a0<strong>higher integration densities<\/strong>, and\u00a0<strong>reduced energy consumption<\/strong>.<\/li>\n<li>Key\u00a0<strong>spintronic devices<\/strong>\u00a0include\u00a0<strong>spin transistors<\/strong>,\u00a0<strong>spin diodes<\/strong>,\u00a0<strong>spin filters<\/strong>,\u00a0<strong>spin RAM<\/strong>, and\u00a0<strong>spin logic gates<\/strong>.<\/li>\n<li>In contrast to conventional electronics, which rely solely on electron\u00a0<strong>charge<\/strong>, spintronics provides an additional degree of freedom\u2014<strong>electron spin<\/strong>, enabling\u00a0<strong>energy-efficient computation<\/strong>.<\/li>\n<li><strong>Valleytronics<\/strong>\u00a0is an emerging field that uses\u00a0<strong>valley degrees of freedom<\/strong>\u00a0(minima in energy bands) to store and manipulate data. Like spin,\u00a0<strong>valley indices<\/strong>\u00a0can be used as binary information units, potentially offering\u00a0<strong>faster and denser data processing<\/strong>.<\/li>\n<\/ul>\n<p><strong>Source:<\/strong>\u00a0<a href=\"https:\/\/phys.org\/news\/2025-04-era-magnetization-future-applications-spintronics.html\" target=\"_blank\" rel=\"nofollow noopener\">PHY<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Altermagnets are antiferromagnetic materials showing momentum-dependent spin splitting without needing spin\u2013orbit coupling or net magnetization.<\/p>\n","protected":false},"author":11,"featured_media":46743,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[300,301,302],"class_list":{"0":"post-46741","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"tag-altermagnets","9":"tag-spintronics","10":"tag-valleytronics","11":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/46741","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=46741"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/46741\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/46743"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=46741"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=46741"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=46741"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}