Nodal topology in $d$-wave superconducting monolayer FeSe

Takeru Nakayama, Tatsuya Shishidou, Daniel F. Agterberg

A nodeless $d$-wave state is likely in superconducting monolayer FeSe on SrTiO${}_3$. The lack of nodes is surprising but has been shown to be a natural consequence of the observed s…