Magnonlike dispersion of spin resonance in Ni-doped BaFe${}_2$As${}_2$

M. G. Kim, G. S. Tucker, D. K. Pratt +10

Inelastic neutron scattering measurements on Ba(Fe${}_{0.963}$Ni${}_{0.037}$)${}_2$As${}_2$ manifest a neutron spin resonance in the superconducting state with anisotropic dispersion withi…