Singlet superconductivity phase in carbon nanotubes

Kenji Kamide, Takashi Kimura, Munehiro Nishida, Susumu Kurihara

    研究成果: Article査読

    18 被引用数 (Scopus)

    抄録

    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.

    本文言語English
    論文番号024506
    ページ(範囲)245061-245067
    ページ数7
    ジャーナルPhysical Review B - Condensed Matter and Materials Physics
    68
    2
    出版ステータスPublished - 2003 7

    ASJC Scopus subject areas

    • Condensed Matter Physics

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