Electronic structure of worm-eaten graphene

Hayato Negishi, Kyozaburo Takeda

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    We theoretically study the electronic structure of graphenes having several kinds of imperfections such as atomic vacancies and heteroatom replacements. We consider 12 different configurations of vacancies and 39 different geometries of heteroatom replacements in order to approximately take into account the random conformations of imperfections. To systematically provide a perspective understanding of the defect π and σ states caused by atomistic voids and/or vacancies and heteroatom replacements, we have carried out a tight-binding (TB) calculation. We study the orbital hybridization to clarify the origin and formation of π and σ defect states arising from such imperfections. We also discuss the electronic structure around the Fermi level through the TB band calculation.

    Original languageEnglish
    Article number025101
    JournalJapanese Journal of Applied Physics
    Volume56
    Issue number2
    DOIs
    Publication statusPublished - 2017 Feb 1

    Fingerprint

    worms
    Graphene
    Electronic structure
    graphene
    electronic structure
    Defects
    defects
    Vacancies
    Fermi level
    Conformations
    voids
    orbitals
    Geometry
    geometry
    configurations

    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy(all)

    Cite this

    Electronic structure of worm-eaten graphene. / Negishi, Hayato; Takeda, Kyozaburo.

    In: Japanese Journal of Applied Physics, Vol. 56, No. 2, 025101, 01.02.2017.

    Research output: Contribution to journalArticle

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