Transport in quantum spin Hall phase of graphene nanoribbons

G. Qin; H. Chen; H. Mizuseki; Y. Kawazoe

doi:10.1063/1.4754427

Transport in quantum spin Hall phase of graphene nanoribbons

G. Qin, H. Chen, H. Mizuseki, Y. Kawazoe

New Industry Creation Hatchery Center (NICHe)

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

1 Citation (Scopus)

Abstract

The electron transport properties with the relativistic intrinsic and Rashba spin-orbit (SO) couplings in a graphene nanoribbon are investigated by using the third-nearest-neighbor tight-binding model and the nonequilibrium Green function method. The numerical results display a perfect quantum spin Hall state (QSH) surrounded by a simple insulator state, presented in Rashba SO coupling vs sublattice potential plane. The QSH state is enhanced by the intrinsic SO coupling, indicating a quantum topological property of graphene nanoribbons.

Original language	English
Article number	063713
Journal	Journal of Applied Physics
Volume	112
Issue number	6
DOIs	https://doi.org/10.1063/1.4754427
Publication status	Published - 2012 Sept 15

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.4754427

Cite this

@article{174cc6d811cc454b99c988855db0f779,

title = "Transport in quantum spin Hall phase of graphene nanoribbons",

abstract = "The electron transport properties with the relativistic intrinsic and Rashba spin-orbit (SO) couplings in a graphene nanoribbon are investigated by using the third-nearest-neighbor tight-binding model and the nonequilibrium Green function method. The numerical results display a perfect quantum spin Hall state (QSH) surrounded by a simple insulator state, presented in Rashba SO coupling vs sublattice potential plane. The QSH state is enhanced by the intrinsic SO coupling, indicating a quantum topological property of graphene nanoribbons.",

author = "G. Qin and H. Chen and H. Mizuseki and Y. Kawazoe",

note = "Funding Information: The authors would like to thank the support of SR11000 supercomputer from the Center for Computational Materials Science of Institute for Materials Research, Tohoku University.",

year = "2012",

month = sep,

day = "15",

doi = "10.1063/1.4754427",

language = "English",

volume = "112",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics Publising LLC",

number = "6",

}

TY - JOUR

T1 - Transport in quantum spin Hall phase of graphene nanoribbons

AU - Qin, G.

AU - Chen, H.

AU - Mizuseki, H.

AU - Kawazoe, Y.

N1 - Funding Information: The authors would like to thank the support of SR11000 supercomputer from the Center for Computational Materials Science of Institute for Materials Research, Tohoku University.

PY - 2012/9/15

Y1 - 2012/9/15

N2 - The electron transport properties with the relativistic intrinsic and Rashba spin-orbit (SO) couplings in a graphene nanoribbon are investigated by using the third-nearest-neighbor tight-binding model and the nonequilibrium Green function method. The numerical results display a perfect quantum spin Hall state (QSH) surrounded by a simple insulator state, presented in Rashba SO coupling vs sublattice potential plane. The QSH state is enhanced by the intrinsic SO coupling, indicating a quantum topological property of graphene nanoribbons.

AB - The electron transport properties with the relativistic intrinsic and Rashba spin-orbit (SO) couplings in a graphene nanoribbon are investigated by using the third-nearest-neighbor tight-binding model and the nonequilibrium Green function method. The numerical results display a perfect quantum spin Hall state (QSH) surrounded by a simple insulator state, presented in Rashba SO coupling vs sublattice potential plane. The QSH state is enhanced by the intrinsic SO coupling, indicating a quantum topological property of graphene nanoribbons.

UR - http://www.scopus.com/inward/record.url?scp=84867042586&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84867042586&partnerID=8YFLogxK

U2 - 10.1063/1.4754427

DO - 10.1063/1.4754427

M3 - Article

AN - SCOPUS:84867042586

SN - 0021-8979

VL - 112

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 6

M1 - 063713

ER -

Transport in quantum spin Hall phase of graphene nanoribbons

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this