Showing papers in "Vacuum in 1983"

TL;DR: In this article, the relative sensitivities of a Bayard-alpert ionization gauge for various organic molecules have been measured and a good correlation with total ionization cross section at 75 eV was found.

TL;DR: In this paper, it was shown that capacitance manometers with sensors maintained at temperatures above ambient show a non-linearity in their pressure response and that the magnitude of this effect is consistent with the thermal transpiration effect calculated from simple kinetic theory.

TL;DR: In this article, a 3 m section of an aluminum vacuum chamber has been exposed to the photon beam emerging from the electron storage ring DCI in Orsay, under conditions closely simulating the environment in a particle acceletor.

TL;DR: In this article, a short review aims at bridging this communication gap, by describing the interesting physical phenomena which occur at the solid-electrolyte interface, in the language of surface science.

TL;DR: In this article, the coadsorption of water with bromine on Cu(110) and Cu(111) has been studied using UPS, LEED, TDS and δφ.

TL;DR: In this article, two commercial catalytic processes are discussed in detail, including the conversion of synthesis gas (in this case a mixture of CO, CO 2 and H 2 ) to methanol over Cu/ZnO/Al 2 O 3 catalysts and partial oxidation of ethylene to ethylene oxide using silver catalysts.

TL;DR: The current status of the newly emerging technique of ultraviolet inverse photoemission spectroscopy is surveyed in this paper, with special reference to the next-generation grating spectrographs already under construction.

TL;DR: A review of recent studies of the emission of secondary particles (neutral atoms, ions and photons) under ion bombardment of metals in the phase transition region of the first and second type is given in this paper.

TL;DR: In this article, it is shown that the binding energies of small clusters on metal surfaces are much less than expected on simple pair-bond models, which can be extended to layer growth, but experimental work has been hampered by lack of suitable surface sensitive microscopic techniques.

TL;DR: In this article, the current improvements are described as well as the problems which have been encountered during the work, and the current state of the art is described as a result of these improvements.

TL;DR: In the last fifteen years, notable advances have been made in the investigation of electron emission from solids caused by bombardment with ions having a wide kinetic energy range as mentioned in this paper, in particular, bombardment with light ions, the influence of recoil atoms, ion-induced Auger electron emission, the ejection statistics and the development of new models and theoretical arguments.

TL;DR: In this paper, the authors used elastic peak electron spectroscopy (EPES) to determine the spectra of secondary electrons in absolute units in the vicinity of the elastic peak including also loss peaks.

TL;DR: In this paper, high resolution electron energy loss and angle-resolved photoemission data are presented for the adsorption of phenol on a Cu{110} surface at room temperature.

TL;DR: The technique of Extended X-ray Absorption Fine Structure (EXAFS) uses variation of absorption cross-section with wavelength to probe the structure local to an element of interest as discussed by the authors.

TL;DR: In this paper, the intensity oscillations for various features in RHEED patterns during MBE growth of GaAs, GaAlAs and Ge are reported and correlated with the mechanism of crystal growth.

TL;DR: In this paper, a cutting tool with a wear-resistant coating of heat-resistant compounds of high-melting metals is described, and a layer of a pure metal is provided between the base material and the coating.

TL;DR: In this paper, the authors described the main aspects of this phenomenon and a short introduction to the ongoing controversial discussion is given, as well as a short summary of the current controversy.

TL;DR: In this article, the effect of co-depositing oxygen species on the growth surface structure was carried out in the case of epitaxially grown Al films (on NaCl, mica and GaAs substrates) containing crystals of (111), (100) and (110) orientations.

TL;DR: A comparison of the adsorption of Sb and Ga on atomically clean cleaved indium phosphide (110) surfaces has been carried out using a range of experimental techniques as mentioned in this paper.

TL;DR: In this article, the Kretschmann configuration for exciting surface plasmon polaritons by attenuated total reflection has been employed to study the electrode potential dependence of the reflectance in the infrared spectral range.

TL;DR: In this paper, a semi-classical theory based on the dielectric function from infra-red reflectivity data was used to evaluate the response of the crystal surface to scattered electrons, and the problems of using energy loss spectroscopy to study adsorbates on surfaces of polar materials are considered.

TL;DR: A general survey of ion optical systems used in the formation of ion microprobes is presented in this paper, with a focus on the combination of lenses with sector fields to give mass separation without energy dispersion.

TL;DR: In this paper, a structural model of the disorder is proposed, based on the asymmetric dimer model of (2×1) reconstruction, which is tested by optical diffraction, and the changes in diffraction patterns when atomic hydrogen is chemisorbed to produce the monohydride and dihydride phases are described and explained.

TL;DR: In this article, contact reactions between a Si substrate and thin films of Ta bilayers and codeposited alloys have been studied by Auger electron spectroscopy and X-ray diffraction.

TL;DR: In this article, the interaction of seven metals with the basal surface of layered solid gallium selenide has been studied by soft X-ray photoemission spectroscopy using synchrotron radiation.

TL;DR: In this paper, a coherent picture of electronic aspects of adsorption and surface reactions, including heterogeneous catalysis, is developed from an increased understanding of the adsorbate-induced electron structure and potential-energy surfaces of adsorbates derived from self-consistent Kohn-Sham-scheme calculations.

TL;DR: A review of the current state of our understanding of some semiconductor surface reconstructions is given in this article, where the strong correlation between atomic and electronic structure and the energies involved in structural rearrangements at the surface are discussed.

TL;DR: In this article, the electrostatic contribution to the surface energy of an ionic crystal is calculated very simply from a sum in reciprocal space, and the omission of short-range forces and relaxation effects leads to calculated values which are much too large, but which nevertheless lie in the correct order in cases so far treated.