Figure 2
From: Experimental observation of drumhead surface states in SrAs3
Fermi surface and constant energy contours of RAs3 (a) Fermi surface and constant energy contour plots of SrAs3, measured at the ALS beamline 10.0.1 using a photon energy of 55 eV. (b) Measured Fermi surface and constant energy contour plots of CaAs3. Each of the distorted hexagons represents a separate Brillouin zone where the b-axis is larger than the a-axis. The measurements were performed at the HRPES end-station of the SLS beamline at a temperature of about 18 K using an incident photon energy of 90 eV. The binding energies are marked in the plots.
