Inelastic neutron scattering study on the resonance mode in an optimally doped superconductor LaFeAsO${}_{0.92}$F${}_{0.08}$

S. Shamoto, M. Ishikado, A. D. Christianson +5

An optimally doped iron-based superconductor LaFeAsO${}_{0.92}$F${}_{0.08}$ with $T_c=29$ K has been studied by inelastic powder neutron scattering. The magnetic excitation at $Q=1.1…