Singlet superconductivity phase in carbon nanotubes

Kenji Kamide, Takashi Kimura, Munehiro Nishida, Susumu Kurihara

    Research output: Contribution to journalArticle

    18 Citations (Scopus)

    Abstract

    We discuss phase diagrams obtained by calculating temperature-dependent correlation functions for superconductivity and density waves 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, since (5,0) CN has two degenerate bands crossing the Fermi energy with circumferential momenta. We find singlet-superconducting phase with 5 ℏ circumferential angular momentum. Critical exponents for each correlation functions are also calculated.

    Original languageEnglish
    Article number024506
    Pages (from-to)245061-245067
    Number of pages7
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume68
    Issue number2
    Publication statusPublished - 2003 Jul

    ASJC Scopus subject areas

    • Condensed Matter Physics

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