Figure 2
From: Antiferromagnetic Metal and Mott Transition on Shastry-Sutherland Lattice
Non-interacting band dispersion at (a) t2 = 0.8, (b) t2 = 1.0, (c) t2 = 1.5, (d) t2 = 2.0, (e) t2 = 2.1 and (f) t2 = 2.5. We label I II III and IV from top to bottom. Band II and III begin to separate when t2 = 2.0 and the system becomes a band insulator at half-filling. We focus on the case when t2 < 2.0 in this report.
