Fig. 3: Photon energy dependence.
From: Unexpected band structure changes within the higher-temperature antiferromagnetic state of CeBi

a, c, e ARPES spectra measured along \(\overline{\Gamma }-\overline{M}\) using different photon energies at T = 26, 21, and 14 K, respectively. b, d, f corresponding second derivative images. ϵ and ζ bands in the AFM1A phase and α, β, γ bands in the AFM1B phase do not shift with photon energy indicating their SS nature.