Trigonal distortion of topologically confined channels in bilayer graphene

2010/12/31 by Álvaro S. Núñez, A. S. Núñez, Eric Suárez Morell +2 · 3 citations
Materials Science · Physics and Astronomy · #Graphene research and applications #Quantum and electron transport phenomena #Topological Materials and Phenomena #cond-mat.mes-hall

paper · pdf · doi:10.1063/1.3605568

published as Appl. Phys. Lett. 98, 262107 (2011) · 4 pages, 4 figures

openalex publication_date 2011/06/27 · arxiv created 2011/07/18 · arxiv updated 2011/07/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

In this work, we show that the trigonal warping of the electronic bands in bilayer graphene dramatically modifies the behavior of the topologically confined one-dimensional modes due to an inhomogeneous bias that changes sign across a channel. Up to four zero modes are present, depending on the orientation of the channel, these zero modes are related to a fractionalization of the topological charge due to the trigonal warping.

Cited by

• Change in Stacking Order and Lifshitz transition in Bi-layer Graphene
• Valley-based Cooper pair splitting via topologically confined channels in bilayer graphene
• Quantum Hall effect in gapped graphene heterojunctions

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