Tunable symmetry breaking and helical edge transport in a graphene quantum spin Hall state

A. F. Young (), J. D. Sanchez-Yamagishi (), B. Hunt (), S. H. Choi, K. Watanabe, T. Taniguchi, R. C. Ashoori and P. Jarillo-Herrero
Additional contact information
A. F. Young: Massachusetts Institute of Technology
J. D. Sanchez-Yamagishi: Massachusetts Institute of Technology
B. Hunt: Massachusetts Institute of Technology
S. H. Choi: Massachusetts Institute of Technology
K. Watanabe: Advanced Materials Laboratory, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
T. Taniguchi: Advanced Materials Laboratory, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
R. C. Ashoori: Massachusetts Institute of Technology
P. Jarillo-Herrero: Massachusetts Institute of Technology

Nature, 2014, vol. 505, issue 7484, 528-532

Abstract: Applying a very large magnetic field to charge-neutral monolayer graphene produces a symmetry-protected quantum spin Hall state with helical edge states whose properties can be modulated by balancing the applied field against an intrinsic antiferromagnetic instability.

Date: 2014
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DOI: 10.1038/nature12800

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