Topological valley transport at bilayer graphene domain walls

Long Ju, Zhiwen Shi, Nityan Nair, Yinchuan Lv, Chenhao Jin, Jairo Velasco, Claudia Ojeda-Aristizabal, Hans A. Bechtel, Michael C. Martin, Alex Zettl, James Analytis and Feng Wang ()
Additional contact information
Long Ju: University of California
Zhiwen Shi: University of California
Nityan Nair: University of California
Yinchuan Lv: University of California
Chenhao Jin: University of California
Jairo Velasco: University of California
Claudia Ojeda-Aristizabal: University of California
Hans A. Bechtel: Lawrence Berkeley National Laboratory
Michael C. Martin: Lawrence Berkeley National Laboratory
Alex Zettl: University of California
James Analytis: University of California
Feng Wang: University of California

Nature, 2015, vol. 520, issue 7549, 650-655

Abstract: The bandgap of bilayer graphene can be tuned with an electric field and topological valley polarized modes have been predicted to exist at its domain boundaries; here, near-field infrared imaging and low-temperature transport measurements reveal such modes in gapped bilayer graphene.

Date: 2015
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DOI: 10.1038/nature14364

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