{"title":"Spin-orbit interaction in unoccupied surface states","authors":"Ryuichi Arafune , Noriaki Takagi , Hiroshi Ishida","doi":"10.1016/j.progsurf.2018.08.001","DOIUrl":null,"url":null,"abstract":"<div><p><span><span>Spin-orbit interaction (SOI) has been investigated extensively in the last decade, for its potential impact on spintronics, which has become particularly important in surface science. This article reviews our recent works on SOI in the </span>image potential states<span> (IPSs), which have been widely studied as an ideal model system for electron dynamics at solid surfaces. By combining high-energy resolution bichromatic two-photon </span></span>photoemission<span> spectroscopy and circular dichroism (CD), we have investigated the Rashba-type SOI of IPSs. We measured the splitting of n = 1 IPS on Au(1 0 0) surface and determined its Rashba parameter. We also discuss the splitting of IPS on a graphene-covered Ir(1 1 1) surface presented recently based on selection rules for CD measurements and the calculated band structure.</span></p></div>","PeriodicalId":416,"journal":{"name":"Progress in Surface Science","volume":"93 4","pages":"Pages 177-188"},"PeriodicalIF":8.7000,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.progsurf.2018.08.001","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Surface Science","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0079681618300212","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 4
Abstract
Spin-orbit interaction (SOI) has been investigated extensively in the last decade, for its potential impact on spintronics, which has become particularly important in surface science. This article reviews our recent works on SOI in the image potential states (IPSs), which have been widely studied as an ideal model system for electron dynamics at solid surfaces. By combining high-energy resolution bichromatic two-photon photoemission spectroscopy and circular dichroism (CD), we have investigated the Rashba-type SOI of IPSs. We measured the splitting of n = 1 IPS on Au(1 0 0) surface and determined its Rashba parameter. We also discuss the splitting of IPS on a graphene-covered Ir(1 1 1) surface presented recently based on selection rules for CD measurements and the calculated band structure.
期刊介绍：
Progress in Surface Science publishes progress reports and review articles by invited authors of international stature. The papers are aimed at surface scientists and cover various aspects of surface science. Papers in the new section Progress Highlights, are more concise and general at the same time, and are aimed at all scientists. Because of the transdisciplinary nature of surface science, topics are chosen for their timeliness from across the wide spectrum of scientific and engineering subjects. The journal strives to promote the exchange of ideas between surface scientists in the various areas. Authors are encouraged to write articles that are of relevance and interest to both established surface scientists and newcomers in the field.
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