2003/01/31 by Kenji Kamide, Takashi Kimura, T. Kimura +3 · 21 citations
Chemistry · Materials Science · Physics and Astronomy · #Angular momentum #Carbon Nanotubes in Composites #Carbon nanotube #Condensed matter physics #Degenerate energy levels #Fullerene Chemistry and Applications #Graphene research and applications #Materials science #Momentum (technical analysis) #Nanotechnology #Phase (matter) #Physics #Quantum electrodynamics #Quantum mechanics #Renormalization #Scattering #Singlet state #Superconductivity #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.68.024506
published in Physical review. B, Condensed matter 68(2) (American Physical Society) · 8 pages, 6 figures
arxiv created 2003/05/14 · openalex publication_date 2003/07/18 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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\ensuremath\Elzxh circumferential angular momentum. Critical exponents for each correlation functions are also calculated.