Figure 1.

Quasiparticle band structure of cubic Fm3̅m Cs₂AgBiBr₆ along the L[1/2, 1/2, 1/2]2π/a – Γ[0, 0, 0] – X[0, 1, 0]2π/a path. Colors represent the orbital character of the bands. The size of the colored dots is proportional to the percentage contribution of the orbital character to the electronic bands. Cs-derived orbitals do not contribute to the states near the band edges, and the halide character was omitted for clarity.