{"id":225400,"date":"2025-11-19T02:06:31","date_gmt":"2025-11-19T08:06:31","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/11\/quantum-imaging-settles-20-year-debate-on-gold-surface-electron-spin-direction"},"modified":"2025-11-19T02:06:31","modified_gmt":"2025-11-19T08:06:31","slug":"quantum-imaging-settles-20-year-debate-on-gold-surface-electron-spin-direction","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/11\/quantum-imaging-settles-20-year-debate-on-gold-surface-electron-spin-direction","title":{"rendered":"Quantum imaging settles 20-year debate on gold surface electron spin direction"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/quantum-imaging-settles-20-year-debate-on-gold-surface-electron-spin-direction.jpg\"><\/a><\/p>\n<p>Researchers at the Institute for Molecular Science (IMS) have definitively resolved a two-decade-long controversy regarding the direction of electron spin on the surface of gold.<\/p>\n<p>Using a state-of-the-art Photoelectron Momentum Microscope (PMM) at the UVSOR synchrotron facility, the team captured complete two-dimensional snapshots of the Au(111) Shockley surface state, mapping both the electron\u2019s spin (its intrinsic magnetic property) and its orbital shape in a projection-based measurement. The work is <a href=\"https:\/\/journals.jps.jp\/doi\/10.7566\/JPSJ.94.114707\" target=\"_blank\">published<\/a> in the Journal of the Physical Society of Japan.<\/p>\n<p>The experiment unambiguously confirmed the Rashba effect\u2014where an electron\u2019s motion is coupled to its spin\u2014by assigning a clockwise (cw) spin texture to the outer electron band and a counterclockwise (ccw) texture to the inner band when viewed from the vacuum side.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Researchers at the Institute for Molecular Science (IMS) have definitively resolved a two-decade-long controversy regarding the direction of electron spin on the surface of gold. Using a state-of-the-art Photoelectron Momentum Microscope (PMM) at the UVSOR synchrotron facility, the team captured complete two-dimensional snapshots of the Au(111) Shockley surface state, mapping both the electron\u2019s spin (its [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1965,1617],"tags":[],"class_list":["post-225400","post","type-post","status-publish","format-standard","hentry","category-mapping","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/225400","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=225400"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/225400\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=225400"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=225400"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=225400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}