Robust subgap edge conduction in bilayer graphene with disordered edge termination
SCIE
SCOPUS
- Title
- Robust subgap edge conduction in bilayer graphene with disordered edge termination
- Authors
- Lee, Hyunwoo; Watanabe, Kenji; Taniguchi, Takashi; Lee, Gil-Ho; Lee, Hu-Jong
- Date Issued
- 2020-07
- Publisher
- AMER PHYSICAL SOC
- Abstract
- The subgap transport in electrostatically gapped bilayer graphene (BLG) is explored by adopting ultrashort constrictions of BLG. We confirmed the emergence of the edge conducting channels, with a residual conductance of similar to 2e(2)/h per edge of realistic disorder. Transport along the edge state exhibits either Coulomb blockade oscillations or Fabry-Perot interference, depending on the interfacial transparency between the reservoirs and the edge channel. Both residual conductance and band-gap dependence of the penetration range of the edge state from a constriction edge coincide well with the behavior of the theoretically predicted robust edge conducting channel, which forms irrespective of the degree of edge disorder.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/105222
- DOI
- 10.1103/PhysRevB.102.035448
- ISSN
- 2469-9950
- Article Type
- Article
- Citation
- PHYSICAL REVIEW B, vol. 102, no. 3, 2020-07
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- There are no files associated with this item.
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