Mode-Matching Approach to Current Blocking Effect in Graphene Nanoribbons

Hai-Yao Deng, Katsunori Wakabayashi, Chi-Hang Lam

    Research output: Contribution to journalArticlepeer-review


    Zigzag graphene nanoribbon (ZGNR) p–n junctions display parity-dependent transport on the number of zigzag chains. We revisit this phenomenon using the mode-matching method and derive analytical solutions for the transmission probability. It is pointed out that the randomness of the interface tilting destroys the parity effect if the spread of the tilting parameter is larger than the lattice constant. We discuss the origin of the parity effect in connection with the lattice symmetry. Junctions with bearded ZGNRs are shown to strongly suppress electron transmission.
    Original languageEnglish
    JournalJournal of the Physical Society of Japan
    Issue number10
    Publication statusPublished - Oct 2013


    • graphene nanoribbon
    • edge modes
    • mode-matching method


    Dive into the research topics of 'Mode-Matching Approach to Current Blocking Effect in Graphene Nanoribbons'. Together they form a unique fingerprint.

    Cite this