Proximity enhanced quantum spin Hall state in graphene
Abstract
Graphene is the first model system of two-dimensional topological insulator (TI), also known as quantum spin Hall (QSH) insulator. The QSH effect in graphene, however, has eluded direct experimental detection because of its extremely small energy gap due to the weak spin–orbit coupling. Here we predict by ab initio calculations a giant (three orders of magnitude) proximity induced enhancement of the TI energy gap in the graphene layer that is sandwiched between thin slabs of Sb2Te3 (or MoTe2). This gap (1.5 meV) is accessible by existing experimental techniques, and it can be further enhanced by tuning the interlayer distance via compression. We reveal by a tight-binding study that the QSH state in graphene is driven by the Kane–Mele interaction in competition with Kekulé deformation and symmetry breaking. As a result, the present work identifies a new family of graphene-based TIs with an observable and controllable bulk energy gap in the graphene layer, thus opening a new avenue for direct verification and exploration of the long-sought QSH effect in graphene.
- Authors:
-
- Univ. of Bremen, Bremen (Germany)
- Max Planck Inst. for Chemical Physics of Solids, Dresden (Germany); Max Planck Institute for Physics of Complex Systems, Dresden (Germany)
- Max Planck Inst. for Chemical Physics of Solids, Dresden (Germany)
- Univ. of Nevada, Las Vegas, NV (United States)
- Publication Date:
- Research Org.:
- Univ. of Nevada, Las Vegas, NV (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1332441
- Alternate Identifier(s):
- OSTI ID: 1337524
- Grant/Contract Number:
- NA0001982
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Carbon
- Additional Journal Information:
- Journal Volume: 87; Journal Issue: C; Journal ID: ISSN 0008-6223
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Kou, Liangzhi, Hu, Feiming, Yan, Binghai, Wehling, Tim, Felser, Claudia, Frauenheim, Thomas, and Chen, Changfeng. Proximity enhanced quantum spin Hall state in graphene. United States: N. p., 2015.
Web. doi:10.1016/j.carbon.2015.02.057.
Kou, Liangzhi, Hu, Feiming, Yan, Binghai, Wehling, Tim, Felser, Claudia, Frauenheim, Thomas, & Chen, Changfeng. Proximity enhanced quantum spin Hall state in graphene. United States. https://doi.org/10.1016/j.carbon.2015.02.057
Kou, Liangzhi, Hu, Feiming, Yan, Binghai, Wehling, Tim, Felser, Claudia, Frauenheim, Thomas, and Chen, Changfeng. Mon .
"Proximity enhanced quantum spin Hall state in graphene". United States. https://doi.org/10.1016/j.carbon.2015.02.057. https://www.osti.gov/servlets/purl/1332441.
@article{osti_1332441,
title = {Proximity enhanced quantum spin Hall state in graphene},
author = {Kou, Liangzhi and Hu, Feiming and Yan, Binghai and Wehling, Tim and Felser, Claudia and Frauenheim, Thomas and Chen, Changfeng},
abstractNote = {Graphene is the first model system of two-dimensional topological insulator (TI), also known as quantum spin Hall (QSH) insulator. The QSH effect in graphene, however, has eluded direct experimental detection because of its extremely small energy gap due to the weak spin–orbit coupling. Here we predict by ab initio calculations a giant (three orders of magnitude) proximity induced enhancement of the TI energy gap in the graphene layer that is sandwiched between thin slabs of Sb2Te3 (or MoTe2). This gap (1.5 meV) is accessible by existing experimental techniques, and it can be further enhanced by tuning the interlayer distance via compression. We reveal by a tight-binding study that the QSH state in graphene is driven by the Kane–Mele interaction in competition with Kekulé deformation and symmetry breaking. As a result, the present work identifies a new family of graphene-based TIs with an observable and controllable bulk energy gap in the graphene layer, thus opening a new avenue for direct verification and exploration of the long-sought QSH effect in graphene.},
doi = {10.1016/j.carbon.2015.02.057},
journal = {Carbon},
number = C,
volume = 87,
place = {United States},
year = {Mon Feb 23 00:00:00 EST 2015},
month = {Mon Feb 23 00:00:00 EST 2015}
}
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Works referenced in this record:
Colloquium: Topological insulators
journal, November 2010
- Hasan, M. Z.; Kane, C. L.
- Reviews of Modern Physics, Vol. 82, Issue 4, p. 3045-3067
Topological insulators and superconductors
journal, October 2011
- Qi, Xiao-Liang; Zhang, Shou-Cheng
- Reviews of Modern Physics, Vol. 83, Issue 4
Quantum Spin Hall Effect in Graphene
journal, November 2005
- Kane, C. L.; Mele, E. J.
- Physical Review Letters, Vol. 95, Issue 22
Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
journal, December 2006
- Bernevig, B. A.; Hughes, T. L.; Zhang, S.-C.
- Science, Vol. 314, Issue 5806, p. 1757-1761
Nonlocal Transport in the Quantum Spin Hall State
journal, July 2009
- Roth, A.; Brune, C.; Buhmann, H.
- Science, Vol. 325, Issue 5938
Spin-orbit gap of graphene: First-principles calculations
journal, January 2007
- Yao, Yugui; Ye, Fei; Qi, Xiao-Liang
- Physical Review B, Vol. 75, Issue 4
Intrinsic and Rashba spin-orbit interactions in graphene sheets
journal, October 2006
- Min, Hongki; Hill, J. E.; Sinitsyn, N. A.
- Physical Review B, Vol. 74, Issue 16
Impurity-Induced Spin-Orbit Coupling in Graphene
journal, July 2009
- Castro Neto, A. H.; Guinea, F.
- Physical Review Letters, Vol. 103, Issue 2
Epitaxial Heterostructures of Ultrathin Topological Insulator Nanoplate and Graphene
journal, August 2010
- Dang, Wenhui; Peng, Hailin; Li, Hui
- Nano Letters, Vol. 10, Issue 8
Topological insulator Bi2Se3 thin films grown on double-layer graphene by molecular beam epitaxy
journal, October 2010
- Song, Can-Li; Wang, Yi-Lin; Jiang, Ye-Ping
- Applied Physics Letters, Vol. 97, Issue 14, Article No. 143118
Proximity-induced giant spin-orbit interaction in epitaxial graphene on a topological insulator
journal, February 2013
- Jin, Kyung-Hwan; Jhi, Seung-Hoon
- Physical Review B, Vol. 87, Issue 7
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set
journal, October 1996
- Kresse, G.; Furthmüller, J.
- Physical Review B, Vol. 54, Issue 16, p. 11169-11186
Self-interaction correction to density-functional approximations for many-electron systems
journal, May 1981
- Perdew, J. P.; Zunger, Alex
- Physical Review B, Vol. 23, Issue 10, p. 5048-5079
Semiempirical GGA-type density functional constructed with a long-range dispersion correction
journal, January 2006
- Grimme, Stefan
- Journal of Computational Chemistry, Vol. 27, Issue 15, p. 1787-1799
Oscillatory crossover from two-dimensional to three-dimensional topological insulators
journal, January 2010
- Liu, Chao-Xing; Zhang, HaiJun; Yan, Binghai
- Physical Review B, Vol. 81, Issue 4
Massive Dirac fermions and spin physics in an ultrathin film of topological insulator
journal, March 2010
- Lu, Hai-Zhou; Shan, Wen-Yu; Yao, Wang
- Physical Review B, Vol. 81, Issue 11
Intrinsic Topological Insulator Bi2Te3 Thin Films on Si and Their Thickness Limit
journal, July 2010
- Li, Yao-Yi; Wang, Guang; Zhu, Xie-Gang
- Advanced Materials, Vol. 22, Issue 36
Kekulé structures of polyphenes
journal, October 1982
- Cyvin, Sven J.
- Monatshefte für Chemie - Chemical Monthly, Vol. 113, Issue 10
Topological insulators with inversion symmetry
journal, July 2007
- Fu, Liang; Kane, C. L.
- Physical Review B, Vol. 76, Issue 4
Topological Order and the Quantum Spin Hall Effect
journal, September 2005
- Kane, C. L.; Mele, E. J.
- Physical Review Letters, Vol. 95, Issue 14, Article No. 146802
Valley-Hall kink and edge states in multilayer graphene
journal, August 2011
- Jung, Jeil; Zhang, Fan; Qiao, Zhenhua
- Physical Review B, Vol. 84, Issue 7
Giant spin-orbit-induced spin splitting in two-dimensional transition-metal dichalcogenide semiconductors
journal, October 2011
- Zhu, Z. Y.; Cheng, Y. C.; Schwingenschlögl, U.
- Physical Review B, Vol. 84, Issue 15
Stacking effects on the electronic and optical properties of bilayer transition metal dichalcogenides , , , and
journal, February 2014
- He, Jiangang; Hummer, Kerstin; Franchini, Cesare
- Physical Review B, Vol. 89, Issue 7
Spin–orbit proximity effect in graphene
journal, September 2014
- Avsar, A.; Tan, J. Y.; Taychatanapat, T.
- Nature Communications, Vol. 5, Issue 1
Works referencing / citing this record:
Electronic and magnetic properties of H-terminated graphene nanoribbons deposited on the topological insulator Sb2Te3
journal, July 2016
- Zhang, Wei; Hajiheidari, Farideh; Li, Yan
- Scientific Reports, Vol. 6, Issue 1
Hydrogenated borophene as a stable two-dimensional Dirac material with an ultrahigh Fermi velocity
journal, January 2016
- Xu, Li-Chun; Du, Aijun; Kou, Liangzhi
- Physical Chemistry Chemical Physics, Vol. 18, Issue 39
Topological phases in two-dimensional materials: a review
journal, May 2016
- Ren, Yafei; Qiao, Zhenhua; Niu, Qian
- Reports on Progress in Physics, Vol. 79, Issue 6
Electronic and magnetic properties of H-terminated graphene nanoribbons deposited on the topological insulator Sb2Te3
text, January 2016
- Zhang, Wei; Hajiheidari, Farideh; Li, Yan
- RWTH Aachen University
Topological Phases in Two-Dimensional Materials: A Brief Review
text, January 2015
- Ren, Yafei; Qiao, Zhenhua; Niu, Qian
- arXiv
PAI-graphene: A new topological semimetallic two-dimensional carbon allotrope with highly tunable anisotropic Dirac cones
journal, December 2020
- Chen, Xin; Bouhon, Adrien; Li, Linyang
- Carbon, Vol. 170
Topological insulators in ordered double transition metals M$'_2$M$"$C$_2$ (M$'$= Mo, W; M$"$= Ti, Zr, Hf) MXenes
text, January 2016
- Khazaei, Mohammad; Ranjbar, Ahmad; Arai, Masao
- arXiv