Electronic structures of noble metal- Pd binary alloys studied by photoemission using synchrotron radiation

Electronic structure of UxPd100−x films prepared by sputter co-deposition

“…6 shows He(II) valence spectra of U x Pd 100−x films. Spectra of the pure elements, shown as reference, are similar to those in literature [22,23]. The surfaces were clean and only a weak oxygen O 2p signal was observed at 6 eV.…”

Electronic structure of UxPd100−x films prepared by sputter co-deposition in Ar atmosphere

“…3 shows He(II) valence spectra of U x Pd 100−x films (x = 0-100%). Spectra of the pure elements, shown as reference, are similar to those in literature [13][14][15]. The surfaces were clean and only a weak oxygen O-2p signal was observed at 6 eV.…”

Electron energy loss spectroscopic investigation of polycrystalline Au, Pd and a Pd–Au alloy

“…2. As indicated by several photoemission studies, the 5d 5/2 and the 5d 3/2 valence bands of gold have binding energies of about 3-4 and 6 eV, respectively [4,5,39,40]. The 3.2-eV energy loss is therefore consistent with an interband transition from the top of the valence band (5d 5/2 ) to the bottom of the conduction band (5sp).…”

“…The result is a broadening of the gold 5d 5/2 band and a narrowing of the palladium 4d band, which also moves away from the Fermi level [2]. Both gold 5d peaks move slightly closer to the Fermi level [4]. The loss of intensity at 3.2 eV can therefore be explained by the mixing of the gold 5d 5/2 and the palladium 4d states.…”

“…For example, the filled densities of states of palladium-gold alloys have been studied using experimental techniques such as X-ray photoelectron spectroscopy (XPS) [1] and valence-band Auger electron spectroscopy (CVV, AES) [2,3], which typically probe different depths beneath the surface. Photoemission spectroscopy (PES) [4,5] has been used to measure the joint density of states and the unfilled density of states have been determined using Bremsstrahlung isochromat spectroscopy (BIS) [6]. Several theoretical calculations of the electronic structure also have been carried out [7][8][9].…”