{"id":13538,"date":"2024-12-16T16:28:23","date_gmt":"2024-12-16T15:28:23","guid":{"rendered":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/?p=13538"},"modified":"2024-12-16T16:29:22","modified_gmt":"2024-12-16T15:29:22","slug":"pushing-the-thickness-limit-of-the-giant-rashba-e%ef%ac%80ect-in-ferroelectric-semiconductor-gete","status":"publish","type":"post","link":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/2024\/12\/16\/pushing-the-thickness-limit-of-the-giant-rashba-e%ef%ac%80ect-in-ferroelectric-semiconductor-gete\/","title":{"rendered":"Pushing the thickness limit of the giant Rashba e\ufb00ect in ferroelectric semiconductor GeTe"},"content":{"rendered":"<p><span lang=\"EN-US\">One of our main societal challenges is to reduce the power consumption of electronic components. A recently developed approach consists of ferroelectric control of charge or spin transport. In this context, GeTe appears as a candidate with great potentialities, as its electronic band structure is characterized by a spin polarization (i) induced by a strong Rashba-type spin-orbit coupling and (ii) controllable by reversing the material ferroelectric polarization.<\/span><\/p>\n<p>To date, only one study has investigated the dependence of the Rashba effect on the thickness of GeTe thin films. A decrease in this effect below 5nm has been observed, until it disappears below 3nm. As part of a collaboration between several French laboratories, we have shown, by means of angle-resolved photoemission spectroscopy\u00a0 measurements <span lang=\"EN-US\">(ARPES) <\/span><span lang=\"EN-US\">in agreement with <i>ab initio<\/i> electronic band structure calculations, that by modifying the conditions under which thin films are elaborated, a giant Rashba effect persists in 1nm-thick films. These results open up new prospects for reducing the size of low-power electronic components.<br \/>\n<\/span><\/p>\n<p>For more information :<\/p>\n<p><a href=\"https:\/\/doi.org\/10.1021\/acs.nanolett.4c03281\">https:\/\/doi.org\/10.1021\/acs.nanolett.4c03281<\/a><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-13579\" src=\"https:\/\/www.cinam.univ-mrs.fr\/cinam\/wp-content\/uploads\/2024\/11\/TOC-3-202x300.jpg\" alt=\"\" width=\"202\" height=\"300\" srcset=\"https:\/\/www.cinam.univ-mrs.fr\/cinam\/wp-content\/uploads\/2024\/11\/TOC-3-202x300.jpg 202w, https:\/\/www.cinam.univ-mrs.fr\/cinam\/wp-content\/uploads\/2024\/11\/TOC-3.jpg 385w\" sizes=\"(max-width: 202px) 100vw, 202px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A new publication in NM Department<\/p>\n","protected":false},"author":16,"featured_media":13539,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[31],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/posts\/13538"}],"collection":[{"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/users\/16"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/comments?post=13538"}],"version-history":[{"count":5,"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/posts\/13538\/revisions"}],"predecessor-version":[{"id":13581,"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/posts\/13538\/revisions\/13581"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/media\/13539"}],"wp:attachment":[{"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/media?parent=13538"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/categories?post=13538"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cinam.univ-mrs.fr\/cinam\/en\/wp-json\/wp\/v2\/tags?post=13538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}