Dynamic Jahn-Teller Mechanism of Superconductivity in MgB${}_2$

Young-Woo Son, Jaejun Yu, Jisoon Ihm

We propose a novel mechanism of superconductivity in MgB${}_2$ based on the dynamic electronic structure of the $p\sigma$-orbitals coupled with $e_{2g}$ phonons. A nonconventional superco…