A Theoretical Approach to Pseudogap and Superconducting Transitions in Hole-Doped Cuprates

Figure 16

(a) The plot of the spectral function in the pseudogap phase (doping level 9.94%) at 𝜔=0 (or, the Fermi energy density of states) on the first Brillouin zone (BZ) for (𝜇/𝑡₁)=−0.0189, (Δ^(pg)₀/𝑡₁)=0.0707, and (Δ^(sc)₀/𝑡₁)=0. The hopping parameters are (𝑡₂/𝑡₁)=0.3925 and (𝑡₃/𝑡₁)=0.0005. (b) The plot of the spectral function in the superconducting phase (doping level 9.94%) at 𝜔=0 (or, the Fermi energy density of states) on the first Brillouin zone (BZ) for (𝜇/𝑡₁)=−0.00183, (Δ^(pg)₀/𝑡₁)=0.024, and (Δ^(sc)₀/𝑡₁)=0.015. The hopping parameters are (𝑡₂/𝑡₁)=0.39125 and (𝑡₃/𝑡₁)=0.0005. The intrinsic lifetime broadening (𝛾/𝑡₁) has been assumed to be 0.1.

(a)

(b)