期刊
SCIENTIFIC REPORTS
卷 3, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep01826
关键词
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资金
- Russian Foundation for Basic Research [11-02-98515r, 12-02-00416, 12-02-00430, 12-02-31745]
- Ministry of Education and Science of the RF [8022, 8581, 2.8575.2013, 2.1004.2011]
- Basque Country Government, Departamento de Educacion, Universidades e Investigacion [IT-366-07]
- Spanish Ministerio de Ciencia e Innovacion [FIS2010-19609-C02-00]
- German-Russian Interdisciplinary Science Center (G-RISC)
- German Federal Foreign Office via the German Academic Exchange Service (DAAD)
- Helmholtz Zentrum Berlin fur Materialien und Energie within bilateral Program Russian-German Laboratory'' at BESSY-II
- SPbU grant
- [NSh-774.2012.2]
Finding appropriate systems with a large spin splitting of metallic surface-state band which can be fabricated on silicon using routine technique is an essential step in combining Rashba-effect based spintronics with silicon technology. We have found that originally poor structural and electronic properties of the Au/Si(111)root 3 x root 3 surface can be substantially improved by adsorbing small amounts of suitable species (e. g., Tl, In, Na, Cs). The resultant surfaces exhibit a highly-ordered atomic structure and spin-split metallic surface-state band with a momentum splitting of up to 0.052 angstrom(-1) and an energy splitting of up to 190 meV at the Fermi level. The family of adsorbate-modified Au/Si(111)root 3 x root 3 surfaces, on the one hand, is thought to be a fascinating playground for exploring spin-splitting effects in the metal monolayers on a semiconductor and, on the other hand, expands greatly the list of material systems prospective for spintronics applications.
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