Incommensurate itinerant antiferromagnetic excitations and spin resonance in the FeTe${}_{0.6}$Se${}_{0.4}$ superconductor

D. N. Argyriou, A. Hiess, A. Akbari +8

We report on inelastic neutron scattering measurements that find incommensurate itinerant like magnetic excitations in the normal state of superconducting FeTe${}_{0.6}$Se${}_{0.4}$ (\…