The Mystery of Superconductivity: Glue or No Glue?

Abstract

In this study, a possible non-quasiparticle glue for superconductivity of both conventional and unconventional superconductors is explored in a pure electron picture. It is shown clearly that the moving electrons due to the electromagnetic interaction can self-organize into some quasi-one-dimensional real-space charge stripes, which can further form some thermodynamically stable vortex lattices with trigonal or tetragonal symmetry. The relationships among the charge stripes, the Cooper pairs and the Peierls phase transition are discussed. The suggested mechanism (glue) of the superconductivity may be valid for the one- and two-dimensional superconductors. We also argue that the highest critical temperature of the doped superconductors is most likely to be achieved around the Mott metal-insulator transition.