The Electronic Structure of PdHx Studied with Photoemission and Electron Energy Loss Spectroscopy
A l0µ thick Pd foil was charged to a concentration of Hx~.75 by cooling slowly from 400 K to 80 K under 2000 Torr H2 pressure in a preparation chamber and then transferred under vacuum into the spectrometer. Upon hydrogenation the following changes in the spectra are observed: in the valence band, abroad peak appears at ~8 eV BE, the total d-band width is reduced ~10% and the density of states at Ef decreases to nearly zero. In the 3d core lineshape, a satellite structure ~ 7 eV below the main line disappears, and the asymmetry of the line is reduced. In the energy loss spectrum, a prominent peak at 7 eV is reduced in intensity and shifted to 4.5 eV.
KeywordsElectron Energy Loss Spectroscopy Electron Energy Loss Spectrum Elastic Peak Valence Band Spectrum Energy Loss Function
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