Doping-driven orbital-selective Mott transition in multi-band Hubbard models with crystal field splitting

Wang Yilin¹, Huang Li², Du Liang³, Dai Xi^{1, †,}

The spin–spin correlation function χ(τ) as a function of imaginary time τ from 0 to β/2 at U/t = 4.90, J_z = 0.25U. Here, (a) N = 1.50, Δ/t = 2.0, in OSMP phase, (b) N = 1.05, Δ/t = 2.7, in metallic phase. In both cases, the lower orbital is half-filled. χ₁₁(τ), χ₂₂(τ), χ_tot(τ) are for upper orbital, lower orbital, and total contributions, respectively.