Electronic structure of FeAl(1 1 0) using upgraded 6 m-TGM at CAMD

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A new endstation has recently been commissioned at 6-m toroidal grating monochromator beamline to perform high-resolution photoemission studies in the photon energy range of 10-180 eV. The new endstation is equipped with Phoibos-150 analyzer with a channelplate and charge coupled device (CCD) camera readout to measure the kinetic energy of the electron and its emission angle simultaneously. The initial energy resolution test of the analyzer from He-I discharge lamp excited Argon 3p gas phase spectra reveals ∼20 meV full-width-half-maximum (FWHM). With this new set-up, we have investigated the electronic structure of FeAl(1 1 0). Preferential sputtering of clean FeAl(1 1 0) surface results in depletion of Al in the near surface region. The surface forms reconstructed phases at different annealing temperature regions. The electronic structure of these phases is presented. © 2007 Elsevier B.V. All rights reserved.

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Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

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