High-energy angle-resolved photoemission of NaMo6O17

Abstract

Abstract Angle-resolved photoelectron spectroscopy of quasi-two-dimensional NaMo6O17 has been investigated with photon energies greater than 70 eV. The underlying quasi-one-dimensional band structure is visualized in multiple Brillouin zones by the constant binding-energy intensity mapping technique. Brillouin zone intensity modulation effects are observed in Fermi-edge intensity maps both as a function of k|| (angle) and of kz (photon energy). Experimental challenges arising from small sample sizes, detection geometry and susceptibility to beam-induced surface damage are also discussed.