Tunneling states in graphene heterostructures consisting of two different graphene superlattices

Li Gang Wang*, Yuen Chi Tse, Shi Yao ZHU

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

We have theoretically investigated the properties of electronic transport in graphene heterostructures, which consist of two different graphene superlattices with one-dimensional periodic potentials. It is found that such heterostructures possess an unusual tunneling state occurring inside the original forbidden gaps, the electronic conductance is greatly enhanced and additionally, the Fano factor is strongly suppressed near the energy of the tunneling state. Finally, we present the matching condition of the impedance of the pseudospin wave for occurring the tunneling state by using the Bloch-wave expansion method.

Original languageEnglish
Article number093703
JournalJournal of Applied Physics
Volume109
Issue number9
DOIs
Publication statusPublished - 1 May 2011

Scopus Subject Areas

  • Physics and Astronomy(all)

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