Unconventional superconducting gap via spin fluctuations in iron-vacancy ordered A${}_y$Fe${}_{2-x}$Se${}_2$

Shin-Ming Huang, Chung-Yu Mou

Based on an effective 12-orbital tight-binding model, we examine the superconducting states induced by the antiferromagnetic fluctuations for iron-vacancy-ordered A${}_y$Fe${}_{2-x}$…