Figure 4: Summary of spin excitations of BFA and BKFA.
From: Persistent high-energy spin excitations in iron-pnictide superconductors
(a) Dispersion of spin excitations of BFA in AF phase, and BKFA in SC phase. For BKFA the reciprocal lattice units are calculated based on the orthorhombic notation with the same lattice parameters as for the AF ordered BFA. The error bars represent s.d. of the fitting (the same as for b and c). (b,c) HWHM (damping) and integrated intensity of spin excitations of BFA and BKFA. The horizontal dotted line in b marks the HWHM of the total instrumental resolution of the RIXS experiment (40 meV).
