Figure 3
From: First Principles Prediction of Topological Phases in Thin Films of Pyrochlore Iridates
Hartree-Fock phase diagram of the bilayer and TKT thin films.
For small U the bilayer exhibits a topological metal phase with time-reversal symmetry preserved. For a somewhat larger U, time-reversal symmetry is spontaneously broken for both the bilayer and trilayer, with Chern metals appearing in the bilayer and TKT films centered around U ≈ 0.6 eV ad U ≈ 0.5 eV respectively. If disorder in the system is not too strong, edge modes in the topological metal and Chern metals can behave qualitatively similar to their insulating counterparts. Topo M = topological metal, M = metal, Mag M = magnetic metal, Mag I = magnetic insulator and Chern M = Chern Metal.
