Experimental observation of two massless Dirac-fermion gases in graphene-topological insulator heterostructure

Guang Bian; Ting Fung Chung; Chaoyu Chen; Chang Liu; Tay Rong Chang; Tailung Wu; Ilya Belopolski; Hao Zheng; Su Yang Xu; Daniel S. Sanchez; Nasser Alidoust; Jonathan Pierce; Bryson Quilliams; Philip P. Barletta; Stephane Lorcy; José Avila; Guoqing Chang; Hsin Lin; Horng Tay Jeng; Maria Carmen Asensio; Yong P. Chen; M. Zahid Hasan

doi:10.1088/2053-1583/3/2/021009

Experimental observation of two massless Dirac-fermion gases in graphene-topological insulator heterostructure

Guang Bian
, Ting Fung Chung
, Chaoyu Chen
, Chang Liu
, Tay Rong Chang
, Tailung Wu
, Ilya Belopolski
, Hao Zheng
, Su Yang Xu
, Daniel S. Sanchez
, Nasser Alidoust
, Jonathan Pierce
, Bryson Quilliams
, Philip P. Barletta
, Stephane Lorcy
, José Avila
, Guoqing Chang
, Hsin Lin
, Horng Tay Jeng
, Maria Carmen Asensio

Yong P. Chen, M. Zahid Hasan

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Graphene and topological insulators (TI) possess two-dimensional (2D) Dirac fermions with distinct physical properties. Integrating these two Dirac materials in a single device creates interesting opportunities for exploring new physics of interacting massless Dirac fermions. Here we report on a practical route to experimental fabrication of graphene-Sb₂Te₃heterostructure. The graphene-TI heterostructures are prepared by using a dry transfer of chemical-vapor-deposition grown graphene film. ARPES measurements confirm the coexistence of topological surface states of Sb₂Te₃and Dirac 7rbands of graphene, and identify the twist angle in the graphene-TI heterostructure. The results suggest a potential tunable electronic platform in which two different Dirac low-energy states dominate the transport behavior.

Original language	English (US)
Article number	021009
Journal	2D Materials
Volume	3
Issue number	2
DOIs	https://doi.org/10.1088/2053-1583/3/2/021009
State	Published - May 11 2016

All Science Journal Classification (ASJC) codes

General Chemistry
General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Keywords

ARPES
Graphene
Heterostructure
Proximity effect
Topological insulator

Access to Document

10.1088/2053-1583/3/2/021009

Cite this

Bian, G., Chung, T. F., Chen, C., Liu, C., Chang, T. R., Wu, T., Belopolski, I., Zheng, H., Xu, S. Y., Sanchez, D. S., Alidoust, N., Pierce, J., Quilliams, B., Barletta, P. P., Lorcy, S., Avila, J., Chang, G., Lin, H., Jeng, H. T., ... Hasan, M. Z. (2016). Experimental observation of two massless Dirac-fermion gases in graphene-topological insulator heterostructure. 2D Materials, 3(2), Article 021009. https://doi.org/10.1088/2053-1583/3/2/021009

@article{9e6e1d645d2c467587411781b554b0f8,

title = "Experimental observation of two massless Dirac-fermion gases in graphene-topological insulator heterostructure",

abstract = "Graphene and topological insulators (TI) possess two-dimensional (2D) Dirac fermions with distinct physical properties. Integrating these two Dirac materials in a single device creates interesting opportunities for exploring new physics of interacting massless Dirac fermions. Here we report on a practical route to experimental fabrication of graphene-Sb2Te3heterostructure. The graphene-TI heterostructures are prepared by using a dry transfer of chemical-vapor-deposition grown graphene film. ARPES measurements confirm the coexistence of topological surface states of Sb2Te3and Dirac 7rbands of graphene, and identify the twist angle in the graphene-TI heterostructure. The results suggest a potential tunable electronic platform in which two different Dirac low-energy states dominate the transport behavior.",

keywords = "ARPES, Graphene, Heterostructure, Proximity effect, Topological insulator",

author = "Guang Bian and Chung, \{Ting Fung\} and Chaoyu Chen and Chang Liu and Chang, \{Tay Rong\} and Tailung Wu and Ilya Belopolski and Hao Zheng and Xu, \{Su Yang\} and Sanchez, \{Daniel S.\} and Nasser Alidoust and Jonathan Pierce and Bryson Quilliams and Barletta, \{Philip P.\} and Stephane Lorcy and Jos{\'e} Avila and Guoqing Chang and Hsin Lin and Jeng, \{Horng Tay\} and Asensio, \{Maria Carmen\} and Chen, \{Yong P.\} and Hasan, \{M. Zahid\}",

note = "Publisher Copyright: {\textcopyright} 2016 IOP Publishing Ltd.",

year = "2016",

month = may,

day = "11",

doi = "10.1088/2053-1583/3/2/021009",

language = "English (US)",

volume = "3",

journal = "2D Materials",

issn = "2053-1583",

publisher = "IOP Publishing Ltd.",

number = "2",

}

Bian, G, Chung, TF, Chen, C, Liu, C, Chang, TR, Wu, T, Belopolski, I, Zheng, H, Xu, SY, Sanchez, DS, Alidoust, N, Pierce, J, Quilliams, B, Barletta, PP, Lorcy, S, Avila, J, Chang, G, Lin, H, Jeng, HT, Asensio, MC, Chen, YP & Hasan, MZ 2016, 'Experimental observation of two massless Dirac-fermion gases in graphene-topological insulator heterostructure', 2D Materials, vol. 3, no. 2, 021009. https://doi.org/10.1088/2053-1583/3/2/021009

TY - JOUR

T1 - Experimental observation of two massless Dirac-fermion gases in graphene-topological insulator heterostructure

AU - Bian, Guang

AU - Chung, Ting Fung

AU - Chen, Chaoyu

AU - Liu, Chang

AU - Chang, Tay Rong

AU - Wu, Tailung

AU - Belopolski, Ilya

AU - Zheng, Hao

AU - Xu, Su Yang

AU - Sanchez, Daniel S.

AU - Alidoust, Nasser

AU - Pierce, Jonathan

AU - Quilliams, Bryson

AU - Barletta, Philip P.

AU - Lorcy, Stephane

AU - Avila, José

AU - Chang, Guoqing

AU - Lin, Hsin

AU - Jeng, Horng Tay

AU - Asensio, Maria Carmen

AU - Chen, Yong P.

AU - Hasan, M. Zahid

PY - 2016/5/11

Y1 - 2016/5/11

N2 - Graphene and topological insulators (TI) possess two-dimensional (2D) Dirac fermions with distinct physical properties. Integrating these two Dirac materials in a single device creates interesting opportunities for exploring new physics of interacting massless Dirac fermions. Here we report on a practical route to experimental fabrication of graphene-Sb2Te3heterostructure. The graphene-TI heterostructures are prepared by using a dry transfer of chemical-vapor-deposition grown graphene film. ARPES measurements confirm the coexistence of topological surface states of Sb2Te3and Dirac 7rbands of graphene, and identify the twist angle in the graphene-TI heterostructure. The results suggest a potential tunable electronic platform in which two different Dirac low-energy states dominate the transport behavior.

AB - Graphene and topological insulators (TI) possess two-dimensional (2D) Dirac fermions with distinct physical properties. Integrating these two Dirac materials in a single device creates interesting opportunities for exploring new physics of interacting massless Dirac fermions. Here we report on a practical route to experimental fabrication of graphene-Sb2Te3heterostructure. The graphene-TI heterostructures are prepared by using a dry transfer of chemical-vapor-deposition grown graphene film. ARPES measurements confirm the coexistence of topological surface states of Sb2Te3and Dirac 7rbands of graphene, and identify the twist angle in the graphene-TI heterostructure. The results suggest a potential tunable electronic platform in which two different Dirac low-energy states dominate the transport behavior.

KW - ARPES

KW - Graphene

KW - Heterostructure

KW - Proximity effect

KW - Topological insulator

UR - https://www.scopus.com/pages/publications/84977583008

UR - https://www.scopus.com/pages/publications/84977583008#tab=citedBy

U2 - 10.1088/2053-1583/3/2/021009

DO - 10.1088/2053-1583/3/2/021009

M3 - Article

AN - SCOPUS:84977583008

SN - 2053-1583

VL - 3

JO - 2D Materials

JF - 2D Materials

IS - 2

M1 - 021009

ER -

Experimental observation of two massless Dirac-fermion gases in graphene-topological insulator heterostructure

Abstract

All Science Journal Classification (ASJC) codes

Keywords

Access to Document

Other files and links

Fingerprint

Cite this