Strain-induced band engineering in monolayer stanene on Sb(111)

被引：112

作者：

Gou, Jian ^{[1
,3
]}

Kong, Longjuan ^{[1
,3
]}

Li, Hui ^{[2
]}

Zhong, Qing ^{[1
,3
]}

Li, Wenbin ^{[1
,3
]}

Cheng, Peng ^{[1
,3
]}

Chen, Lan ^{[1
,3
]}

Wu, Kehui ^{[1
,3
,4
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China

[2] Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Beijing 100029, Peoples R China

[3] Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China

[4] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China

来源：

PHYSICAL REVIEW MATERIALS | 2017年 / 1卷 / 05期

关键词：

TOPOLOGICAL INSULATORS; SURFACE; GRAPHENE; PT(111); GROWTH; STATES;

D O I：

10.1103/PhysRevMaterials.1.054004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The two-dimensional (2D) allotrope of tin with low buckled honeycomb structure named stanene is proposed to be an ideal 2D topological insulator with a nontrivial gap larger than 0.1 eV. Theoretical works also pointed out the topological property of stanene amenability to strain tuning. In this paper we report the successful realization of high quality, monolayer stanene film as well as monolayer stanene nanoribbons on Sb(111) surface by molecular-beam epitaxy, providing an ideal platform to the study of stanene. More importantly, we observed a continuous evolution of the electronic bands of stanene across the nanoribbon, related to the strain field gradient in stanene. Our work experimentally confirmed that strain is an effective method for band engineering in stanene, which is important for fundamental research and application of stanene.

引用

页数：6

共 44 条

[1] Z2 Invariance of Germanene on MoS2 from First Principles [J].

Amlaki, Taher ;

Bokdam, Menno ;

Kelly, Paul J. .

PHYSICAL REVIEW LETTERS, 2016, 116 (25)

[2] A LOW-ENERGY ELECTRON-DIFFRACTION - AUGER-ELECTRON SPECTROSCOPY STUDY OF ALLOY FORMATION DURING THE ADSORPTION OF TIN ON (100) AND (111) AU [J].

BARTHES, MG ;

PARISET, C .

THIN SOLID FILMS, 1981, 77 (04) :305-312

[3] PROJECTOR AUGMENTED-WAVE METHOD [J].

BLOCHL, PE .

PHYSICAL REVIEW B, 1994, 50 (24) :17953-17979

[4]

Broek B., 2014, 2D MATER, V1

[5] Continuous Germanene Layer on A(111) [J].

Derivaz, Mickael ;

Dentel, Didier ;

Stephan, Regis ;

Hanf, Marie-Christine ;

Mehdaoui, Ahmed ;

Sonnet, Philippe ;

Pirri, Carmelo .

NANO LETTERS, 2015, 15 (04) :2510-2516

[6] Structure and electronic states of the α-Sn(111)-(2x2) surface [J].

Eguchi, T ;

Nakamura, J ;

Osaka, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1998, 67 (02) :381-384

[7] Van der Waals heterostructures [J].

Geim, A. K. ;

Grigorieva, I. V. .

NATURE, 2013, 499 (7459) :419-425

[8] Strained monolayer germanene with 1 x 1 lattice on Sb(111) [J].

Gou, Jian ;

Zhong, Qing ;

Sheng, Shaoxiang ;

Li, Wenbin ;

Cheng, Peng ;

Li, Hui ;

Chen, Lan ;

Wu, Kehui .

2D MATERIALS, 2016, 3 (04)

[9]

GUO Y, 2016, 2D MATER, V3

[10] WSXM:: A software for scanning probe microscopy and a tool for nanotechnology [J].

Horcas, I. ;

Fernandez, R. ;

Gomez-Rodriguez, J. M. ;

Colchero, J. ;

Gomez-Herrero, J. ;

Baro, A. M. .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2007, 78 (01)

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