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Flat edge modes of graphene and of Z(2 )topological insulator

A graphene nano-ribbon in the zigzag edge geometry exhibits a specific type of gapless edge modes with a partly flat band dispersion. We argue that the appearance of such edge modes are naturally understood by regarding graphene as the gapless limit of a Z(2 )topological insulator. To illustrate thi...

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Autori principali: Imura, Ken-Ichiro, Mao, Shijun, Yamakage, Ai, Kuramoto, Yoshio
Natura: Artigo
Lingua:Inglês
Pubblicazione: Springer 2011
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Accesso online:https://ncbi.nlm.nih.gov/pmc/articles/PMC3211448/
https://ncbi.nlm.nih.gov/pubmed/21711883
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/1556-276X-6-358
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