Theoretical study on the tunneling spectrum of quasi-one dimensional organic superconductors (TMTSF)2X

Abstract Pairing symmetries ( p , ‘ d ’ and ‘ f ’ waves) are analyzed for the organic superconductor (TMTSF) 2 X in terms of the “generic phase diagram” against the spin/charge fluctuations and the magnetic anisotropy. We then propose that the symmetry can be identified from the tunneling spectroscopy (presence/absence of zero bias peaks along with the shape of the gap) by calculating the surface density of states using an extended Hubbard model.