Anisotropic and quasipropagating spin excitations in superconducting Ba(Fe0.926Co0.074)2As2

H. -F. Li, C. Broholm, D. Vaknin +12

Inelastic neutron scattering from superconducting (SC) Ba(Fe${}_{0.926}$Co${}_{0.074}$)${}_2$As${}_2$ reveals anisotropic and quasi-two-dimensional (2D) magnetic excitations close to \text…