Interference between superconducting and spin-density-wave pairings in organic conductors

We briefly examine the application of weak coupling scaling theory to the problem of interference between Peierls and Cooper pairings in quasi-one-dimensional conductors. For repulsive interactions, we show how from the flow of coupling constants and considerations based on Landau free energy, superconductivity is found to emerge from spin-density-wave correlations when deviations to perfect nesting are present. The influence of hot regions of the Fermi surface where the amplitude of election-electron scattering is large is analyzed in connection with the properties of the normal state of the Bechgaard and Fahre salt series.