Effect of interchain interaction on pairing symmetry competition in organic superconductors (TMTSF)2X

We investigate the effect of interchain repulsive interaction on the pairing symmetry competition in quasi-one-dimensional organic superconductors (TMTSF)(2)X by applying random phase approximation and quantum Monte Carlo calculation to an extended Hubbard model. We find that interchain repulsive interaction enhances the 2k(F) charge fluctuations, thereby making the possibility of spin-triplet f-wave pairing dominating over spin-singlet d-wave pairing realistic.