Impurity effect on Bogoliubov Fermi surfaces: Analysis based on iron-based superconductors

Tatsuya Miki, Hiroaki Ikeda, Shintaro Hoshino

The effect of impurities on a superconductor with Bogoliubov Fermi surfaces (BFSs) is studied using a realistic tight-binding model. Based on the band structure composed of $d$-orb…