Odd-frequency spin-triplet superconductivity in two dimensional disordered electron liquid.*

In this work we theoretically study the odd-frequency spin-triplet superconductivity in disordered two dimensional electron liquid. We propose a pairing mechanism based on the interplay of screened Coulomb interaction and the interference of electrons due to the impurity scattering. The mechanism suppresses possible attraction in the singlet part of the Cooper channel, and depending on the ratio of repulsive interaction in the charge and spin channels, it results in attraction between electrons in the odd-frequency spin triplet part of the Cooper channel. Being derived for the metallic phase of the system, it can be relevant for the metal to insulator transition point.