Nematicity from mixed S_{+-} + d_{x^2-y^2} states in iron-based superconductors

G. Livanas, A. Aperis, P. Kotetes +1

We demonstrate that in iron-based superconductors, the extended S_{+-} SC state coexists with the d_{x^2-y^2} state under generic conditions. The mixed S_{+-} + d_{x^2-y^2} SC is a…