Superconducting and density-wave correlation functions in carbon nanotubes

Kenji Kamide, Munehiro Nishida, Susumu Kurihara

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    We discuss the phase diagrams obtained by calculating temperature dependences of superconducting and density-wave correlation functions for a single (5,0) carbon nanotube (CN). We use one-loop renormalization group method within logarithmic accuracy. In this system, we must specify scattering channels in terms of momentum along the circumferential direction as well as the axis direction, because (5,0) CN has two degenerate bands crossing the Fermi energy with circumferential momenta. We find that the most divergent order is singlet superconducting or charge-density wave with 0 or 10πℏ/2πR circumferential momentum, where R is the tube radius.

    Original languageEnglish
    Pages (from-to)218-219
    Number of pages2
    JournalPhysica E: Low-Dimensional Systems and Nanostructures
    Volume18
    Issue number1-3
    DOIs
    Publication statusPublished - 2003 May

    Keywords

    • Carbon nanotube
    • Density wave
    • Renormalization group
    • Superconductivity

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

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