X-ray photoelectron spectroscopy of rare-earth compounds

Surface oxidation behavior of MgNd alloys

“…By peak deconvolution, the Nd 3d 5/2 shows an intense peak at 983.3 eV (FWHM % 3.06 eV) and a weak broad shoulder at above 978.9 eV (FWHM % 4.22 eV) due to the shake-up process (many-body perturbation). The Nd 3d 5/2 peak at 983.3 eV is in good agreement with an oxidation state of Nd 3+ as in Nd 2 O 3 [29]. The spectrum of Mg 2p as shown in Fig.…”

Electrochemical Synthesis of Rare Earth Ceramic Oxide Coatings

“…Figure 8 is the high resolution XPS spectra of the Pr 3d core level showing the 3d5/2 and 3d3/2 signals separated by 20.2 eV, with the peak positions at 933.3 eV and 953.5 eV, respectively. A strong shoulder can be seen on the lower BE sides of the Pr 3d5/2 and Pr 3d3/2 peaks, with comparable intensity and a distance between around 4.5 and 4.3 eV, this is consistent with results in literature for praseodymium [103,104]. The XPS spectra of polycrystalline powders of Pr 2 O 3 , PrO 2, and Pr 6 O 11 all have an energy separation of the Pr 3d3/2 and Pr 3d5/2 core levels in the range of 17.5-23.0 eV.…”

Room temperature synthesis of samarium oxide nanotubes using cost-effective electroless deposition method

“…Comparing the binding energies shown in Figure 4(a)-(c) with literature values [24], we observed a shift for the binding energies for the fabricated SmNTs of $10 eV. With further detailed examinations, the composition of the fabricated nanotubes was consistent with stochiometric Sm 2 O 3 .…”