We report results of angle-resolved photoemission spectroscopy (ARPES) measurements performed on the bilayered material ${\mathrm{Sr}}_3{\mathrm{Ru}}_2{\mathrm{O}}_7$ in the range of emission angles spanning the whole Brillouin zone (BZ), and at photon energies $h\nu =20.4\mathrm{}$–53.4 eV. We utilize a technique based on estimation of an angular dependence of ARPES integrated spectral weight to determine the Fermi surface. At the same time, modifications to the technique allowed us to trace the dispersive ARPES features throughout the BZ to obtain a dispersion of the electronic energy bands below the Fermi energy as well as to check a self-consistency of the Fermi-surface determination.

• Received 5 December 1997

DOI:https://doi.org/10.1103/PhysRevB.58.6671