2009/06/02 by A. V. Rozhkov
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Business #Competition (biology) #Condensed matter physics #Order (exchange) #Organic and Molecular Conductors Research #Physics #Physics of Superconductivity and Magnetism #Superconductivity #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.79.224501
published as Phys. Rev. B 79, 224501 (2009) · 6 pages, 1 eps figure
openalex publication_date 2009/06/02 · arxiv created 2009/09/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We show that, under rather general assumptions, the phase diagram of a quasi-one-dimensional repulsive Fermi system consists of two ordered phases: the density wave, spin or charge, and the superconductivity. It is demonstrated that the symmetry of the superconducting order parameter is a nonuniversal property sensitive to microscopic details of the model. Three potentially stable superconducting states are identified: they are triplet f-wave, singlet d_x2\ensuremath-y2-wave, and dxy-wave. The presence of multiple competing superconducting states implies that for a real material this symmetry is difficult to predict theoretically and hard to probe experimentally since artifacts of theoretical approximations or variations in experimental conditions could tip the balance between the superconducting phases.