{"id":89901,"date":"2025-03-20T10:15:41","date_gmt":"2025-03-20T02:15:41","guid":{"rendered":"https:\/\/honwaygroup.com\/cobalt-layer-enhances-spintronic-potential-of-graphene-heterostructures\/"},"modified":"2025-04-25T03:07:55","modified_gmt":"2025-04-24T19:07:55","slug":"cobalt-layer-enhances-spintronic-potential-of-graphene-heterostructures","status":"publish","type":"post","link":"https:\/\/honwaygroup.com\/en\/cobalt-layer-enhances-spintronic-potential-of-graphene-heterostructures\/","title":{"rendered":"Cobalt Layer Enhances Spintronic Potential of Graphene Heterostructures"},"content":{"rendered":"\n<p class=\"has-medium-font-size\">Spintronics, which manipulates electron spin, has the potential to accelerate the speed and reduce the energy consumption of electronic devices. However, generating and manipulating spin textures in materials remains a challenge. A recent Spanish-German research team discovered that when graphene is layered with heavy metals such as cobalt and iridium, it exhibits enhanced quantum effects, such as increased spin-orbit coupling and spin canting, which is highly beneficial for the development of spintronics.<\/p>\n\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>Table of Contents<\/h2><nav><ul><li class=\"\"><a href=\"#%E7%9F%B3%E5%A2%A8%E7%83%AF%E8%88%87%E8%87%AA%E6%97%8B%E9%9B%BB%E5%AD%90%E5%AD%B8\">Graphene and Spintronics<\/a><\/li><li class=\"\"><a href=\"#%E9%88%B7%E5%B1%A4%E7%9A%84%E5%A2%9E%E5%BC%B7%E4%BD%9C%E7%94%A8\">Enhancement by the Cobalt Layer<\/a><\/li><li class=\"\"><a href=\"#%E7%AA%81%E7%A0%B4%E6%80%A7%E7%9A%84%E5%AF%A6%E9%A9%97%E8%88%87%E7%90%86%E8%AB%96%E9%A9%97%E8%AD%89\">Breakthrough Experimental and Theoretical Verification<\/a><\/li><\/ul><\/nav><\/div>\n\n<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-5049f1c5bbfde5d75e6c5153ed5e8871\" id=\"&#x77F3;&#x58A8;&#x70EF;&#x8207;&#x81EA;&#x65CB;&#x96FB;&#x5B50;&#x5B78;\">Graphene and Spintronics<\/h2>\n\n<p class=\"has-medium-font-size\">Spintronics utilizes the spin of electrons to perform logic operations and data storage. Spintronic devices have the potential to surpass traditional semiconductors in terms of speed and energy efficiency. However, generating and manipulating spin textures within materials poses significant challenges. Graphene, a two-dimensional honeycomb structure composed of carbon atoms, is considered a potential candidate material for spintronic applications. When graphene is deposited on a thin film of heavy metal, it generates strong spin-orbit coupling at the interface, leading to various quantum effects, including the Rashba effect (spin-orbit splitting of energy levels) and the Dzyaloshinskii-Moriya interaction (tilting of spin alignment). In particular, the spin canting effect can be used to stabilize vortex-like spin textures (skyrmions), which are considered key elements for future spintronic devices.<\/p>\n\n<p class=\"has-medium-font-size\">\u203bKnowledge Supplement: Spin is a property of electrons that can generate magnetism and influence electronic component applications. Unlike traditional electronic components, spin control offers more possibilities. When magnetic and non-magnetic materials come into contact, they interact and produce the &#8220;magnetic proximity effect,&#8221; a property widely used in magnetic memory.<\/p>\n\n<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-c6522a7628c1864cd39a8945e3fab297\" id=\"&#x9237;&#x5C64;&#x7684;&#x589E;&#x5F37;&#x4F5C;&#x7528;\">Enhancement by the Cobalt Layer<\/h2>\n\n<p class=\"has-medium-font-size\">The Spanish and German research team recently found that when a single layer of the ferromagnetic element cobalt is inserted between graphene and a heavy metal (such as iridium), these quantum effects are significantly enhanced. The team grew samples on an insulating substrate to ensure that these effects could be effectively applied in multifunctional spintronic devices.<\/p>\n\n<p class=\"has-medium-font-size\">Spectroscopic analysis conducted at the Helmholtz-Zentrum Berlin (HZB) BESSY II showed that graphene interacts not only with the cobalt layer but also indirectly with the iridium layer through the cobalt. This means that the interaction between graphene and the heavy metal is mediated by the ferromagnetic cobalt layer, which enhances the splitting of energy levels and the spin canting effect.<\/p>\n\n<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-aff75aa98016012051c7d32d8ac36e14\" id=\"&#x7A81;&#x7834;&#x6027;&#x7684;&#x5BE6;&#x9A57;&#x8207;&#x7406;&#x8AD6;&#x9A57;&#x8B49;\">Breakthrough Experimental and Theoretical Verification<\/h2>\n\n<p class=\"has-medium-font-size\">Dr. Jaime S\u00e1nchez-Barriga, a physicist at HZB, pointed out that the spin canting effect can be influenced by adjusting the number of cobalt monolayers, with three cobalt monolayers showing the best results. This result was supported by both experimental data and density functional theory (DFT) calculations. The mutual influence and enhancement of the two quantum effects is a key and unexpected finding of this research.<\/p>\n\n<p class=\"has-medium-font-size\">This breakthrough was made possible by the advanced spin- and angle-resolved photoemission spectroscopy (Spin-ARPES) technique at BESSY II. S\u00e1nchez-Barriga stated that this technique allowed the research team to precisely measure the spin canting effect and Rashba-type spin-orbit splitting in the material, even resolving its derivative, which can be more significant than the electron spin itself.<\/p>\n\n<p class=\"has-medium-font-size\">Only a very small number of institutions worldwide possess measurement equipment with such high sensitivity. Therefore, the results of this research lay a solid foundation for the application of graphene-based heterostructures in next-generation spintronic devices, demonstrating their immense potential. Further exploration of different combinations of ferromagnetic layers or heavy metals may lead to the discovery of more novel quantum effects, accelerating the practical application of spintronic technology.<\/p>\n\n<p>Reference<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Spintronics Breakthrough: Inserting Cobalt Layer Unleashes Graphene&#8217;s Quantum Potential<\/li>\n\n\n\n<li>Spintronics Breakthrough: Unlocking the Quantum Potential of Graphene With Cobalt<\/li>\n\n\n\n<li>Beatriz Mu\u00f1iz Cano, Adri\u00e1n Gud\u00edn, Jaime S\u00e1nchez-Barriga, Oliver Clark, Alberto Anad\u00f3n, Jose Manuel D\u00edez, &#8230;Paolo Perna (2024). Rashba-like Spin Textures in Graphene Promoted by Ferromagnet-Mediated Electronic Hybridization with a Heavy Metal, ACS Nano, Vol18, Issue24, DOI: 10.1021\/acsnano.4c02154 <\/li>\n<\/ul>\n\n<p>(Source of first picture: Dall-E\/ar\u00f6\/Helmholtz-Zentrum Berlin)<\/p>\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n<p>We offer customized adjustments to the grinding process, tailored to meet processing requirements for maximum efficiency.<\/p>\n\n<p style=\"line-height:0.8\">Feel free to contact us and we will have specialist available to answer your questions.<\/p>\n\n<p style=\"line-height:0.8\">If you need customized quotations, you\u2019re also welcome to contact us.<\/p>\n\n<p style=\"line-height:0.8\">Customer Service Hours: Monday to Friday 09:00~18:00 (GMT+8)<\/p>\n\n<p style=\"line-height:0.8\">Phone: +886<a href=\"https:\/\/www.google.com\/search?q=%E5%AE%8F%E5%B4%B4&amp;oq=%E5%AE%8F%E5%B4%B4&amp;gs_lcrp=EgZjaHJvbWUqBggAEEUYOzIGCAAQRRg7MhAIARAuGK8BGMcBGIAEGI4FMgYIAhBFGDsyBwgDEAAYgAQyBggEEEUYPTIGCAUQRRg9MgYIBhBFGD0yBggHEEUYQdIBCDE5MDhqMGo3qAIIsAIB&amp;sourceid=chrome&amp;ie=UTF-8\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">7 223 1058<\/a><\/p>\n\n<p style=\"line-height:0.8\">If you have a subject that you want to know or a phone call that is not clear, you are welcome to send a private message to Facebook~~<\/p>\n\n<p style=\"line-height:0.8\">Honway Facebook: <a href=\"https:\/\/lihi.cc\/LhR8c\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">https:\/\/www.facebook.com\/honwaygroup<\/a><\/p>\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-ast-global-color-0-background-color has-background wp-element-button\" href=\"https:\/\/honwaygroup.com\/en\/honway-raw-materials\/\" target=\"_blank\" rel=\"noreferrer noopener\">We are Honway, by controlling our raw materials from the source, we ensure the quality of our products and offer you customized options.<\/a><\/div>\n<\/div>\n\n<ul class=\"wp-block-jetpack-sharing-buttons has-normal-icon-size jetpack-sharing-buttons__services-list\" id=\"jetpack-sharing-serivces-list\">\n\n\n\n<\/ul>\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p>You may be interested in&#8230;<\/p>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\"><p>[wpb-random-posts]<\/p>\n<\/div>\n<\/div>\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Spintronics, which manipulates electron spin, has the potential to accelerate the speed and reduce the energy consumption of electronic devices. However, generating and manipulating spin textures in materials remains a challenge. A recent Spanish-German research team discovered that when graphene is layered with heavy metals such as cobalt and iridium, it exhibits enhanced quantum effects, such as increased spin-orbit coupling and spin canting, which is highly beneficial for the development of spintronics.<\/p>\n","protected":false},"author":1,"featured_media":77207,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[791,3166],"tags":[8500,6711,8501,3181],"class_list":["post-89901","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-column","category-technological-insights","tag-cobalt-layer","tag-graphene-en","tag-graphene-and-spintronics","tag-material-technology"],"_links":{"self":[{"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/posts\/89901","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/comments?post=89901"}],"version-history":[{"count":0,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/posts\/89901\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/media\/77207"}],"wp:attachment":[{"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/media?parent=89901"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/categories?post=89901"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/tags?post=89901"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}