The Phenomenology of Iron Pnictides Superconductors Explained in the Framework of 𝑠-Wave Three-Band Eliashberg Theory

Figure 2

Full symbols, left axis: calculated gap values at 𝑇=2 K for LaFeAsO0.9F0.1 as a function of typical boson energy Ω₀. Open symbols, right axis: electron-boson coupling constants, 𝜆₁₃ and 𝜆₂₃, as a function of Ω₀. The inset shows the spectral function used in this model in the case Ω_𝑖𝑗=10 meV.