Zero-energy peak and pairing symmetry of quasi-one-dimensional organic superconductor (TMTSF) 2X

• Published in: The Journal of physics and chemistry of solids Vol. 63; no. 6; pp. 1273 - 1276
• Main Authors: Tanuma, Y., Kuroki, K., Tanaka, Y., Arita, R., Kashiwaya, S., Aoki, H.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Oxford Elsevier Ltd 01.06.2002; Elsevier
• Subjects: A Superconductors; Condensed matter: electronic structure, electrical, magnetic, and optical properties; D. Fermi surface; D. Spin density wave; D. Superconductivity; Exact sciences and technology; Organic superconductors; Physics; Proximity effects, weak links, tunneling phenomena, and Josephson effects; Proximity effects, weak links, tunneling phenomena, and josephson effects, adreev effect, sn and sns junctions; Superconducting materials (excluding high-tc compounds); Superconductivity; 74.20.Mn; A Superconductors; D. Fermi surface; D. Spin density wave; 74.70.Kn; D. Superconductivity; Organic superconductors; Dimensionality; Anisotropy; Tunnel effect; Spin fluctuations; Surface electron state; Pairing symmetry; Experimental study; Pairing; TMTSF; Charge fluctuation
• ISSN: 0022-3697; 1879-2553
• DOI: 10.1016/S0022-3697(02)00123-3

Competition between p-, d-, and f-wave pairings in the organic superconductor (TMTSF) 2X is discussed, where the major ingredients are: (i) quasi-one-dimensionality, (ii) coexistence of charge and spin fluctuations, and (iii) anisotropy in the spin fluctuation in this material. We then propose that the pairing symmetry can be experimentally identified from the tunneling spectroscopy, where the p-, d-, f-waves should exhibit a U-shaped gap+a zero-energy peak, V-gap, or V+zero-energy peak, respectively.