title: A strategy to create spin-split metallic bands on silicon using a dense alloy layer.
abstract: To exploit Rashba effect in a 2D electron gas on silicon surface for spin transport, it is necessary to have surface reconstruction with spin-split metallic surface-state bands. However, metals with strong spin-orbit coupling (e.g., Bi, Tl, Sb, Pt) induce reconstructions on silicon with almost exclusively spin-split insulating bands. We propose a strategy to create spin-split metallic bands using a dense 2D alloy layer containing a metal with strong spin-orbit coupling and another metal to modify the surface reconstruction. Here we report two examples, i.e., alloying reconstruction with Na and Tl/Si(111)1 × 1 reconstruction with Pb. The strategy provides a new paradigm for creating metallic surface state bands with various spin textures on silicon and therefore enhances the possibility to integrate fascinating and promising capabilities of spintronics with current semiconductor technology.
authors.affiliation: 1] Institute of Automation and Control Processes FEB RAS, 690041 Vladivostok, Russia [2] Far Eastern Federal University, School of Natural Sciences, 690950 Vladivostok, Russia.
authors.forename: Dimitry V
authors.initials: DV
authors.lastname: Gruznev
authors.affiliation: 1] Institute of Automation and Control Processes FEB RAS, 690041 Vladivostok, Russia [2] Far Eastern Federal University, School of Natural Sciences, 690950 Vladivostok, Russia.
authors.forename: Leonid V
authors.initials: LV
authors.lastname: Bondarenko
authors.affiliation: 1] Institute of Automation and Control Processes FEB RAS, 690041 Vladivostok, Russia [2] Far Eastern Federal University, School of Natural Sciences, 690950 Vladivostok, Russia.
authors.forename: Andrey V
authors.initials: AV
authors.lastname: Matetskiy
authors.affiliation: Institute of Automation and Control Processes FEB RAS, 690041 Vladivostok, Russia.
authors.forename: Alexey A
authors.initials: AA
authors.lastname: Yakovlev
authors.affiliation: Institute of Automation and Control Processes FEB RAS, 690041 Vladivostok, Russia.
authors.forename: Alexandra Y
authors.initials: AY
authors.lastname: Tupchaya
authors.affiliation: 1] Institute of Strength Physics and Materials Science, 634021 Tomsk, Russia [2] Tomsk State University, 634050 Tomsk, Russia.
authors.forename: Sergey V
authors.initials: SV
authors.lastname: Eremeev
authors.affiliation: 1] Tomsk State University, 634050 Tomsk, Russia [2] Donostia International Physics Center (DIPC), 20018 San Sebastían/Donostia, Basque Country, Spain [3] Departamento de Física de Materiales UPV/EHU, CFM-MPC and Centro Mixto CSIC-UPV/EHU, 20080 San Sebastían/Donostia, Basque Country, Spain.
authors.forename: Evgeniy V
authors.initials: EV
authors.lastname: Chulkov
authors.affiliation: Institute of Atomic and Molecular Sciences, Academia SinicaP.O. Box 23-166 Taipei, Taiwan.
authors.forename: Jyh-Pin
authors.initials: JP
authors.lastname: Chou
authors.affiliation: Institute of Atomic and Molecular Sciences, Academia SinicaP.O. Box 23-166 Taipei, Taiwan.
authors.forename: Ching-Ming
authors.initials: CM
authors.lastname: Wei
authors.affiliation: Institute of Atomic and Molecular Sciences, Academia SinicaP.O. Box 23-166 Taipei, Taiwan.
authors.forename: Ming-Yu
authors.initials: MY
authors.lastname: Lai
authors.affiliation: Institute of Atomic and Molecular Sciences, Academia SinicaP.O. Box 23-166 Taipei, Taiwan.
authors.forename: Yuh-Lin
authors.initials: YL
authors.lastname: Wang
authors.affiliation: 1] Institute of Automation and Control Processes FEB RAS, 690041 Vladivostok, Russia [2] Far Eastern Federal University, School of Natural Sciences, 690950 Vladivostok, Russia [3] Department of Electronics, Vladivostok State University of Economics and Service, 690600 Vladivostok, Russia.
authors.forename: Andrey V
authors.initials: AV
authors.lastname: Zotov
authors.affiliation: 1] Institute of Automation and Control Processes FEB RAS, 690041 Vladivostok, Russia [2] Far Eastern Federal University, School of Natural Sciences, 690950 Vladivostok, Russia.
authors.forename: Alexander A
authors.initials: AA
authors.lastname: Saranin
references.citation: J Phys Condens Matter. 2011 Feb 9;23(5):053201
references.pmid: 21406903
references.citation: Phys Rev B Condens Matter. 1993 Jan 1;47(1):558-561
references.pmid: 10004490
references.citation: Nat Commun. 2010 May 17;1:17
references.pmid: 20975678
references.citation: Nat Commun. 2013;4:2073
references.pmid: 23811797
references.citation: Sci Rep. 2013;3:1826
references.pmid: 23661151
references.citation: Phys Rev Lett. 1996 Oct 28;77(18):3865-3868
references.pmid: 10062328
references.citation: Phys Rev Lett. 2009 Mar 6;102(9):096805
references.pmid: 19392551
references.citation: Phys Rev Lett. 2012 May 4;108(18):186801
references.pmid: 22681100
references.citation: Phys Rev Lett. 2009 Oct 9;103(15):156801
references.pmid: 19905655
references.citation: Phys Rev B Condens Matter. 1996 Aug 15;54(7):4762-4765
references.pmid: 9986437
references.citation: Phys Rev B Condens Matter. 1994 Dec 15;50(24):17953-17979
references.pmid: 9976227
references.citation: Phys Rev Lett. 2009 Jul 24;103(4):046803
references.pmid: 19659381
references.citation: Phys Rev Lett. 1991 May 27;66(21):2762-2765
references.pmid: 10043610
references.citation: Phys Rev Lett. 2013 Jan 18;110(3):036801
references.pmid: 23373940
references.citation: Phys Rev Lett. 2013 Oct 25;111(17):176402
references.pmid: 24206505