Kohn-Luttinger Correction to Tc in a Phonon Superconductor

Dan Phan, Andrey V Chubukov

Weak coupling theory predicts the critical temperature of a phonon superconductor to be $T_c=1.13e^{-3/2}{\omega }_D{e}^{-1/\lambda }$, where ${\omega }_D$ is the Debye frequency, $\lambda$ is the dimensi…