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Showing papers in "Journal of Electron Spectroscopy and Related Phenomena in 1995"


Journal ArticleDOI
TL;DR: In this article, a detailed XPS study of several oxides of vanadium is reported in an attempt to characterize clearly the surface of these oxides, and several parameters, such as the FWHM of the v2p 3 2 and O1s XPS peaks, their shape and binding energy difference, have been utilized.

645 citations


Journal ArticleDOI
TL;DR: In this paper, XPS and Factor Analysis (FA) were applied to characterize the surface state of three polycrystalline cobalt oxide samples with different crystallographic bulk structure (CO 3 O 4 and CoO) and surface characteristics.

312 citations


Journal ArticleDOI
TL;DR: In this article, it was shown that the depth resolution in ARXPS is limited by signal-to-noise ratio, not the number of emission angles for which data is acquired, and that depth resolution can be improved by up to a factor of about 2 by confining the interval over which the CDP is reconstructed.

306 citations


Journal ArticleDOI
TL;DR: In this article, the adsorption of titanium on titanium dioxide TiO 2 (110) has been studied by X-ray photoelectron spectroscopy (XPS) and low energy ion scattering (LEIS).

260 citations


Journal ArticleDOI
Joachim Stöhr1
TL;DR: In this article, a review of the principles underlying X-ray magnetic circular dichroism (XMCD) spectroscopy is given, and the main strengths of the technique are highlighted.

228 citations


Journal ArticleDOI
TL;DR: In this paper, an accurate analysis of high resolution spectra, including cross-checking between the independent fittings of different though related signals (e.g. C1s and O1s), is presented, enlightening novel findings on polypyrrole structure.

224 citations


Journal ArticleDOI
TL;DR: The XPS at different experimental conditions of WO3, WO2, WC, WC + O2 and WC+ O2 are reported in this paper, where it is attributed to the presence of a certain density of states of the 5d, 6s electrons present at the Fermi-level on the W4+ cation and observed in the XPS of the valence band energy region of W O2.

169 citations


Journal ArticleDOI
TL;DR: In this article, the authors present data for highly symmetric and flat aromates without (perylene) or with reactive groups (PTCDA, PTCDI, NDCA) on various single crystal surfaces such as Ag(111), Ni(111) and Si(111).

144 citations


Journal ArticleDOI
TL;DR: In this article, the effect of surface treatments and damage induced on the Ce3d core level of ceria samples by the X-ray power density, the exposure time to the Xray beam and the sample charge effect was investigated.

109 citations


Journal ArticleDOI
TL;DR: In this article, the mixed-valence behavior of Eu in these compounds is discussed and an explanation for the XPS final state effects in the Eu3d, Eu4d and Eu 4f photoionisation process is proposed.

106 citations


Journal ArticleDOI
TL;DR: In this article, the first time resolved X-ray photoelectron spectroscopy (XPS) experiments were performed at the Trieste SuperESCA beam line, where high quality high resolution (better than 0.3 eV) core level photoemission data from adsorbate species on metal samples can be acquired in a few seconds.

Journal ArticleDOI
TL;DR: In this article, a general discussion of chemical shifts in core-level photoelectron spectroscopy is presented, and two starting points that are commonly used for describing the important ingredients are discussed.

Journal ArticleDOI
TL;DR: In this article, the relative partial photoionization cross sections in He and Ne atoms were measured using photoelectron spectroscopy, along with previously published data obtained from photoabsorption, photoion, and photo electrophoresis spectroscopies.

Journal ArticleDOI
TL;DR: In this article, the peak positions of the Mn2p and Mn3s X-ray photoelectron spectra (XPS) of manganese(I, II, III and IV) complexes with a variety of coordination structures were measured.

Journal ArticleDOI
TL;DR: In this paper, the current status of photoelectron diffraction studies of surface structures is briefly reviewed, and several recent developments and proposals for future areas of application are then discussed, including the application of full-solid-angle diffraction data, together with simultaneous characterization by low energy electron diffraction and scanning tunnelling microscopy, to epitaxial growth.

Journal ArticleDOI
TL;DR: In this article, the absolute photoabsorption oscillator strength for the discrete electronic transitions of acetylene from 5.5 to 11.2 eV have been measured using high resolution ≈ 0.05 eV FWHM) dipole (e,e) spectroscopy.

Journal ArticleDOI
TL;DR: In this article, a system for the calibration of the intensity/energy response function for electron spectrometers used in AES and X-ray photoelectron spectroscopy (XPS) is described.

Journal ArticleDOI
TL;DR: In this paper, an analysis of the vibrational fine structure on the main C1s photoelectron line is presented, which indicates that the lifetime broadening is 78 ± 10 meV.

Journal ArticleDOI
TL;DR: In this article, a process of computation obtained by combining Wendin's quasi-particle method and the Johansson-Martenssen method with first-order correction is employed in this work to explain the observed physical phenomena.

Journal ArticleDOI
TL;DR: In this article, different states of silver supported on oxide carriers have been studied by the method of electron spectroscopy of diffuse reflectance (ESDR), and the nature of the support, modifying additions and redox treatments have a great effect on the position and intensity of the absorption bands of Ag0, Ag+ and Agnδ+ in the EDR spectra of supported Ag-containing systems.

Journal ArticleDOI
TL;DR: In this paper, a general analytical formalism for quantitative X-ray photoelectron spectroscopy analysis is proposed, which accounts properly for both elastic and inelastic interactions of the signal electrons with one-element solids, and is applicable to any experimental configuuration of XPS.

Journal ArticleDOI
TL;DR: In this article, a core level X-ray photoemission and absorption spectra (XPS and XAS) is calculated for some transition metal insulating compounds, especially oxides, using a configuration-interaction impurity-Anderson model combined with the influences of the core effect.

Journal ArticleDOI
TL;DR: X-ray photoelectron spectroscopy and X-ray fluorescence spectroscopies have become widely accepted as important tools for the study of the chemical composition and electronic properties of surfaces, overlayers, and interfaces as mentioned in this paper.

Journal ArticleDOI
TL;DR: In this paper, a two-dimensional angular distribution of photoelectrons from valence band was analyzed using a tight-binding initial state, and the symmetry-broken patterns observed from π band of single-crystalline graphite was clearly explained.

Journal ArticleDOI
TL;DR: In this paper, the authors present high-resolution core-level spectroscopy results for the clean Si(100) surface and for a few cases of ordered overlayers for the 2 × 1 room temperature phase and the c (4 × 2) low temperature phase.

Journal ArticleDOI
TL;DR: In this paper, the authors present an implementation of the one centre approximation in an ab initio CI program that describes autoionization (or deexcitation) electron spectra of core to bound excited molecules and Auger spectra.

Journal ArticleDOI
TL;DR: The onsite molecular Coulomb interaction of solid C 60 is determined by means of a comparison of the selfconvolution and the KVV Auger spectrum and found to be 1.6±0.2 eV and nearly independent of the molecular orbitals.

Journal ArticleDOI
TL;DR: In this article, a free electron laser using the SLAC linac is described, operating in a single pass, high gain regime, should reach wavelengths down to a few Angstroms.

Journal ArticleDOI
TL;DR: In this paper, the authors studied the coverage dependence of oxygen adsorption on the hexagonal Co(11 2 0) surface at 100 and 320 K by means of Auger electron spectroscopy (AES), photoelectron spectroscope (XPS, UPS) and change in work function (Δφ).

Journal ArticleDOI
Masaoki Oku1
TL;DR: In this paper, the X-ray photoelectron spectra of KMnO 4 and K 2 MnO 4 were measured in situ and the degradation was accelerated by x-ray irradiation.