Coexistence of superfluid and metallic-like state in two-component fermionic systems

► We study superconductivity in a multi-component system along the BCS-BEC crossover. ► The T=0 phase diagram exhibits different regimes for the superfluid phases. ► We find a new metallic phase with fermions coexisting with preformed pairs. ► Superconductivity is destroyed from the BEC-like regime.