Structure and electronic properties of the (root 3x root 3 )R30 degrees SnAu2/Au(111) surface alloy

doi:10.1103/PhysRevB.98.205419

	Structure and electronic properties of the (root 3x root 3 )R30 degrees SnAu2/Au(111) surface alloy
	Maniraj, M.1,2; Jungkenn, D.1,2; Shi, W.3,4 ; Emmerich, S.1,2,5; Lyu, L.1,2; Kollamana, J.1,2; Wei, Z.1,2,6; Yan, B.3,7; Cinchetti, M.8; Mathias, S.9; Stadtmueller, B.1,2,5; Aeschlimann, M.1,2
	2018-11-26
发表期刊	PHYSICAL REVIEW B (IF:3.2[JCR-2023],3.3[5-Year])
ISSN	2469-9950
卷号	98 期号:20
发表状态	已发表
DOI	10.1103/PhysRevB.98.205419
摘要	We have investigated the atomic and electronic structure of the (root 3x root 3)R30 degrees SnAu2/Au(111) surface alloy. Low-energy electron diffraction and scanning tunneling microscopy measurements show that the native herringbone reconstruction of bare Au(111) surface remains intact after formation of a long-range ordered (root 3x root 3)R30 degrees SnAu2/Au(111) surface alloy. Angle-resolved photoemission and two-photon photoemission spectroscopy techniques reveal Rashba-type spin-split bands in the occupied valence band with comparable momentum space splitting as observed for the Au(111) surface state, but with a hole-like parabolic dispersion. Our experimental findings are compared with density functional theory (DFT) calculation that fully support our experimental findings Taking advantage of the good agreement between our DFT calculations and the experimental results, we are able to extract that the occupied Sn-Au hybrid band is of (s, d)-orbital character, while the unoccupied Sn-Au hybrid bands are of (p, d)-orbital character. Hence we can conclude that the Rashba-type spin splitting of the hole-like Sn-Au hybrid surface state is caused by the significant mixing of Au d with Sn s states in conjunction with the strong atomic spin-orbit coupling of Au. i.e., of the substrate.
收录类别	SCI ; SCIE
语种	英语
资助项目	[SFB1073]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000451333100011
出版者	AMER PHYSICAL SOC
WOS关键词	SCANNING-TUNNELING-MICROSCOPY ; HERRINGBONE RECONSTRUCTION ; AU(111) SURFACE ; SPIN ; PHOTOEMISSION ; DOMAINS
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/28997
专题	物质科学与技术学院通识教学中心_外聘教师
通讯作者	Maniraj, M.
作者单位	1.Univ Kaiserslautern, Dept Phys, D-67663 Kaiserslautern, Germany 2.Univ Kaiserslautern, Res Ctr OPTIMAS, D-67663 Kaiserslautern, Germany 3.Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany 4.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China 5.Grad Sch Excellence Mat Sci Mainz, Erwin Schrodinger Str 46, D-67663 Kaiserslautern, Germany 6.Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China 7.Weizmann Inst Sci, Dept Condensed Matter Phys, IL-7610001 Rehovot, Israel 8.Tech Univ Dortmund, Expt Phys 6, D-44221 Dortmund, Germany 9.Georg August Univ Gottingen, Phys Inst 1, Friedrich Hund Pl 1, D-37077 Gottingen, Germany
推荐引用方式 GB/T 7714	Maniraj, M.,Jungkenn, D.,Shi, W.,et al. Structure and electronic properties of the (root 3x root 3 )R30 degrees SnAu2/Au(111) surface alloy[J]. PHYSICAL REVIEW B,2018,98(20).
APA	Maniraj, M..,Jungkenn, D..,Shi, W..,Emmerich, S..,Lyu, L..,...&Aeschlimann, M..(2018).Structure and electronic properties of the (root 3x root 3 )R30 degrees SnAu2/Au(111) surface alloy.PHYSICAL REVIEW B,98(20).
MLA	Maniraj, M.,et al."Structure and electronic properties of the (root 3x root 3 )R30 degrees SnAu2/Au(111) surface alloy".PHYSICAL REVIEW B 98.20(2018).