Showing papers in "Surface Science in 1975"

TL;DR: In this paper, a speculation about the mechanism of the initial graphitization of the basal faces of the SiC is given, and the graphite layer is shown to be monocrystalline on the Si-face and mostly poly-poly-poly(poly) on the C-face.

TL;DR: In this paper, an attempt is made to draw correlations between thermal desorption and structural studies of chemisorption on metal surfaces, in particular with relation to the adsorption of hydrogen and carbon monoxide on tungsten.

TL;DR: In this paper, the thermodynamic formalism of equilibrium segregation, when taking into account the interaction of M and I atoms in an iron base solid solution can explain this behaviour, is developed.

TL;DR: In this paper, a method for the rapid evaluation of the electrostatic potential near the surface of an ionic crystal was described with reference to X-ray photoelectron spectroscopy.

TL;DR: The adsorption of oxygen on the ruthenium (001) surface has been studied using a combination of techniques: LEED/Auger, Kelvin probe contact potential changes, and flash desorption mass spectrometry as mentioned in this paper.

TL;DR: In this paper, a modulated molecular beam technique, using mass spectrometric detection of desorbed species, had been applied to a study of the kinetics of Ga and As4 interactions on {100} GaAs surfaces.

TL;DR: In this paper, a quantum theory of elastic scattering of atoms from crystal surfaces is presented, based on a hard corrugated surface model, and it is shown in detail how the rainbow effect arises and determines the diffraction probabilities, such a rainbow effect being the quantum analogon of McClure's classical rainbow.

TL;DR: Reflection-absorption spectra of carbon monoxide on polycrystalline films deposited on glass, alumina and magnesia substrates are in good agreement with transmission spectra from copper supported on high area silica and alumina powders as discussed by the authors.

TL;DR: In this article, a series of flash curves at different heating rates were obtained for the CO 2 and CO products from DCOOH flash decomposition following adsorption on Ni (110) at 37°C.

TL;DR: In this paper, the use of LEED intensity spectra for surface structure determination is discussed, and guidelines are suggested for successful application to surface structure, and the special suitability of the muffin-tin potential for the LEED calculation is brought out; the model of the complex crystal potential used for the calculation, and systematic determination of the four parameters of the model from the data for clean Ni are described.

TL;DR: In this article, a review of grain boundary adsorption and its effect on important mechanical properties such as temper brittleness in steels is presented. But no attempt is made to provide a complete bibliography but rather to put in perspective the significant and properly documented observations relating to segregation.

TL;DR: In this article, the X-ray excited photoelectron spectrum during exposure of clean magnesium, aluminium, chromium and manganese to oxygen and water vapour, provide data on the kinetics of reaction with these gases.

TL;DR: In this paper, the angular dependence of adsorbate and substrate peak intensity ratios was studied. But the results were not correlated with the results of earlier measurements with other methods, and the data were correlated only with the O 1s XPS peak intensity.

TL;DR: In this article, the results obtained by X-ray photoelectron spectroscopy (XPS) and ultra-violet photo-electron (UPS) were discussed in an attempt to establish what has been achieved, and what might be achieved in the elucidation of adsorption bonding at metal surfaces.

TL;DR: In this paper, the basic formalisms for treatment of the homogeneous surface and the layered structure are presented; their use and typical limitations are demonstrated by examining some applications, such as surface chemical composition analysis.

TL;DR: In this paper, a short review of experimental methods used to determine desorption energies and frequencies is discussed, and the assumptions underlying the theoretical analysis of experimental data are discussed, as well as the results obtained clearly reveal the limitations of previous analytical methods and of the experimental technique per se.

TL;DR: In this paper, the surface structures of sulfur on the (100) and the (111) faces of platinum were investigated as a function of coverage and temperature, using a beam of S2 molecules generated by electrochemical decomposition of Ag2S.

TL;DR: The adsorption isotherm for heterogeneous surfaces can be very well approximated by the exponential higher degree polynomial of variable In (p/p 0).

TL;DR: The dissociative chemisorption of oxygen and water was reported on both (111) and [6(111) × (100) crystal faces of gold.

TL;DR: The interaction of NO with a Ni (111) surface was studied by means of LEED, AES, UPS and flash desorption spectroscopy as mentioned in this paper, and the mean adsorption energy is about 25 kcalmole.

TL;DR: In this article, a reproducible oxide layer was prepared by the high temperature reaction of H2O at 10−6 torr with Fe(001), and the initial oxygen sticking coefficient was observed to be close to unity, which suggests that the chemisorption is nonactivated and involves a mobile adsorption step.

TL;DR: In this paper, the deposition of carbon is studied by LEED on four platinum crystal faces: two low-index surfaces Pt(100), Pt(111) and two stepped surfaces Pt (S) − [5(100) × (111)], a vicinal of (100) and its vicinal.

TL;DR: In this article, a point-to-point resolution of one micrometer and an in-depth resolution of better than 100 A in favorable cases were used for secondary ion emission analysis of surfaces.

TL;DR: Theoretical estimates in the LCAO approximation reveal that matrix elements for interatomic Auger processes are very strongly energy dependent, but that for very low energy Auger transitions they may be comparable with the competing intra-atomic processes as mentioned in this paper.

TL;DR: In this article, the adsorption of NO, CO and to some extent of O2 on Pt (100) and Ru (1010) surfaces was investigated by Auger electron and UV photoemission spectroscopy (UPS) at substrate temperatures below 100°C.

TL;DR: In this paper, the energy and angle dependence of the dissociative adsorption probability of hydrogen on copper is shown to predict the non-cosine angular distributions of desorption.

TL;DR: In this paper, a model combining statistical adsorption and island growth for the formation of the p(2 × 1) structure was proposed to reconstruct the surface of W(110) for ccverages below 0.5.

TL;DR: In this article, the adsorption of oxygen and carbon monoxide on a clean Pt (100) surface was investigated using LEED, Auger electron spectroscopy and flash desorption mass spectra.

TL;DR: In this paper, the adsorption of oxygen on a (110)Ag surface is investigated by means of Auger electron spectroscopy, LEED and low energy helium ion scattering (IS).