2D Tl-Pb compounds on Ge(111) surface: atomic arrangement and electronic band structure

被引：5

作者：

Gruznev, D. V. ^{[1
,2
]}

Bondarenko, L. V. ^{[1
,2
]}

Tupchaya, A. Y. ^{[1
,2
]}

Eremeev, S. V. ^{[3
,4
]}

Mihalyuk, A. N. ^{[1
,2
]}

Chou, J. P. ^{[5
]}

Wei, C. M. ^{[6
]}

Zotov, A. V. ^{[1
,2
,7
]}

Saranin, A. A. ^{[1
,2
]}

机构：

[1] Inst Automat & Control Proc FEB RAS, Vladivostok 690041, Russia

[2] Far Eastern Univ, Sch Nat Sci, Vladivostok 690950, Russia

[3] Inst Strength Phys & Mat Sci, Tomsk 634021, Russia

[4] Tomsk State Univ, Tomsk 634050, Russia

[5] Wigner Res Ctr Phys, Inst Solid State Phys & Opt, POB 49, H-1525 Budapest, Hungary

[6] Acad Sinica, Inst Atom & Mol Sci, POB 23-166, Taipei, Taiwan

[7] Vladivostok State Univ Econ & Serv, Dept Elect, Vladivostok 690600, Russia

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2017年 / 29卷 / 03期

基金：

俄罗斯科学基金会; 俄罗斯基础研究基金会;

关键词：

atom-solid interaction; 2D layer; STM; ARPES; DFT calculations; electronic structure; SUPERCONDUCTIVITY; FILMS;

D O I：

10.1088/0953-8984/29/3/035001

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Structural transformations and evolution of the electron band structure in the (Tl, Pb)/Ge(1 1 1) system have been studied using low-energy electron diffraction, scanning tunneling microscopy, angle-resolved photoelectron spectroscopy and density functional theory calculations. The two 2D Tl-Pb compounds on Ge(1 1 1), root 3 x root 3-(Tl, Pb) and 3 x 3-(Tl, Pb), have been found and their composition, atomic arrangement and electron properties has been characterized. The (Tl, Pb)/Ge(1 1 1) root 3 x root 3 compound is almost identical to the alike (Tl, Pb)/Si(1 1 1) root 3 x root 3 system from the viewpoint of its atomic structure and electronic properties. They contain 1.0 ML of Tl atoms arranged into a honeycomb network of chained trimers and 1/3 ML of Pb atoms occupying the centers of the honeycomb units. The (Tl, Pb)/Ge(1 1 1) 3 x 3 compound contains six Tl atoms and seven Pb atoms per 3x3 unit cell (i. e. similar to 0.67 ML Tl and similar to 0.78 ML Pb). Its atomic structure can be visualized as consisting of Pb hexagons surrounded by Tl trimers. The (Tl, Pb)/Ge(1 1 1) root 3 x root 3 and (Tl, Pb)/Ge(1 1 1) 3 x 3 compounds are metallic and their band structures contain spin-split surface-state bands. By analogy with the (Tl, Pb)/Si(1 1 1) root 3 x root 3, these (Tl, Pb)/Ge(1 1 1) compounds are believed to be promising objects for prospective studies of superconductivity in one-atom-layer systems.

引用

页数：9

共 54 条

[11] Silicon Surface with Giant Spin Splitting [J].

Gierz, I. ;

Suzuki, T. ;

Frantzeskakis, E. ;

Pons, S. ;

Ostanin, S. ;

Ernst, A. ;

Henk, J. ;

Grioni, M. ;

Kern, K. ;

Ast, C. R. .

PHYSICAL REVIEW LETTERS, 2009, 103 (04)

[12] Atomic structure and electronic properties of the two-dimensional (Au, Al)/Si(111)2 x 2 compound [J].

Gruznev, D. V. ;

Bondarenko, L. V. ;

Matetskiy, A. V. ;

Tupchaya, A. Y. ;

Chukurov, E. N. ;

Hsing, C. R. ;

Wei, C. M. ;

Eremeev, S. V. ;

Zotov, A. V. ;

Saranin, A. A. .

PHYSICAL REVIEW B, 2015, 92 (24)

[13] Electronic band structure of a Tl/Sn atomic sandwich on Si(111) [J].

Gruznev, D. V. ;

Bondarenko, L. V. ;

Matetskiy, A. V. ;

Tupchaya, A. Y. ;

Alekseev, A. A. ;

Hsing, C. R. ;

Wei, C. M. ;

Eremeev, S. V. ;

Zotov, A. V. ;

Saranin, A. A. .

PHYSICAL REVIEW B, 2015, 91 (03)

[14] Synthesis of two-dimensional TlxBi1-x compounds and Archimedean encoding of their atomic structure [J].

Gruznev, Dimitry V. ;

Bondarenko, Leonid V. ;

Matetskiy, Andrey V. ;

Mihalyuk, Alexey N. ;

Tupchaya, Alexandra Y. ;

Utas, Oleg A. ;

Eremeev, Sergey V. ;

Hsing, Cheng-Rong ;

Chou, Jyh-Pin ;

Wei, Ching-Ming ;

Zotov, Andrey V. ;

Saranin, Alexander A. .

SCIENTIFIC REPORTS, 2016, 6

[15] A Strategy to Create Spin-Split Metallic Bands on Silicon Using a Dense Alloy Layer [J].

Gruznev, Dimitry V. ;

Bondarenko, Leonid V. ;

Matetskiy, Andrey V. ;

Yakovlev, Alexey A. ;

Tupchaya, Alexandra Y. ;

Eremeev, Sergey V. ;

Chulkov, Evgeniy V. ;

Chou, Jyh-Pin ;

Wei, Ching-Ming ;

Lai, Ming-Yu ;

Wang, Yuh-Lin ;

Zotov, Andrey V. ;

Saranin, Alexander A. .

SCIENTIFIC REPORTS, 2014, 4

[16] Large Rashba spin splitting of surface resonance bands on semiconductor surface [J].

Hatta, Shinichiro ;

Aruga, Tetsuya ;

Ohtsubo, Yoshiyuki ;

Okuyama, Hiroshi .

PHYSICAL REVIEW B, 2009, 80 (11)

[17] Three-Dimensional Spin Rotations at the Fermi Surface of a Strongly Spin-Orbit Coupled Surface System [J].

Hoepfner, P. ;

Schaefer, J. ;

Fleszar, A. ;

Dil, J. H. ;

Slomski, B. ;

Meier, F. ;

Loho, C. ;

Blumenstein, C. ;

Patthey, L. ;

Hanke, W. ;

Claessen, R. .

PHYSICAL REVIEW LETTERS, 2012, 108 (18)

[18] Electronic band structure of the two-dimensional metallic electron system Au/Ge(111) [J].

Hoepfner, P. ;

Schaefer, J. ;

Fleszar, A. ;

Meyer, S. ;

Blumenstein, C. ;

Schramm, T. ;

Hessmann, M. ;

Cui, X. ;

Patthey, L. ;

Hanke, W. ;

Claessen, R. .

PHYSICAL REVIEW B, 2011, 83 (23)

[19] Relativistic effects and fully spin-polarized Fermi surface at the Tl/Si(111) surface [J].

Ibanez-Azpiroz, Julen ;

Eiguren, Asier ;

Bergara, Aitor .

PHYSICAL REVIEW B, 2011, 84 (12)

[20] ABINITIO MOLECULAR-DYNAMICS FOR LIQUID-METALS [J].

KRESSE, G ;

HAFNER, J .

PHYSICAL REVIEW B, 1993, 47 (01) :558-561

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