Prediction of Double-Weyl Points in the Iron-Based Superconductor CaKFe${}_4$As${}_4$

N. Heinsdorf, M. H. Christensen, M. Iraola +6

Employing a combination of symmetry analysis, low-energy modeling, and ab initio simulations, we predict the presence of magnetic-field-induced Weyl points close to the Fermi level…