Showing papers in "Surface Science in 1988"

TL;DR: In this paper, it was shown that for on-axis measurements the relation kT s = E /η K is replaced by kT S = E η K, with η k ranging from 2.52 for a monatomic species to 3.28 for a species with many accessible internal degrees of freedom.

TL;DR: In this article, self-consistent solutions for quasi-one-dimensional electron states in a narrow inversion layer channel at a GaAs/AlGaAs heterointerface have been obtained for a structure with a split gate.

TL;DR: In this article, the growth surface of vapor-deposited gold on mica with an STM was mapped for various gold thicknesses and deposition temperatures, and the dislocations observed by STM were apparently created as these holes fill in, due to frequent misregistry of the gold lattice around the holes.

TL;DR: In this paper, the escape depths of electrons with kinetic energies of approximately 1150 and 1380 eV in Si and thermally grown SiO 2 thin films have been calculated, using three methods, from X-ray photoelectron spectra of samples which have been characterized by high resolution transmission electron microscopy (HRTEM).

TL;DR: In this article, the rates and mechanisms of chemisorption on the Si(111)-(7×7) surface have been investigated under UHV conditions for SiH4, Si2H6, and Si3H8.

TL;DR: In this paper, photoelectron diffraction from the C 1s and O 1s levels of the surface formate species (HCOO) on Cu{100} and Cu{110} has been measured and shows almost identical modulation structure indicating that the adsorption site is the same on both surfaces.

TL;DR: In this paper, a comparative study of oxygen adsorption on Pt(111) and Pt(112) has been performed using temperature programmed desorption, isothermal desorptions, Auger spectroscopy, LEED and isotopic measurements.

TL;DR: In this paper, the electronic states and chemisorption properties for CH3OH, HCOOH and SO2 were compared with those of a TiO2(110) surface by means of XPS, UPS and LEED at 298 K.

TL;DR: The surface stoichiometry and structure of α-Fe2O3(0001) and (10ovbar|12) natural growth faces has been studied with X-ray photoemission and LEED following room temperature Ar ion bombardment and subsequent annealing in partial pressures of O2 between 400°C and 1000°C.

TL;DR: In this article, the epitaxial growth of ultrathin films of pseudomorphic fcc-Fe on Cu(100) has been studied with several structure sensitive techniques, and it has been found that the growth is not via a Frank-van der Merwe (layer-by-layer) mechanism, as proposed by several others, but exhibits Fe agglomeration, and at or slightly above 300 K, Cu surface segregation.

TL;DR: In this paper, the adsorption of CO on Cu(111) has been re-investigated using FT-RAIRS, electron energy loss spectroscopy (EELS) and low energy electron diffraction (LEED).

TL;DR: In this article, a series of dense CO structures formed on the Ni(100), Cu(100 and Pd(100) surfaces have been investigated using high resolution electron energy loss spectroscopy (EELS).

TL;DR: In this article, the stability of different configurations of the deposit was investigated by the use of molecular dynamics techniques, and the rate of nucleation of clusters was calculated in terms of the driving force and the surface and interfacial energies of the system.

TL;DR: In this article, the functional depedence of υ 0 on the surface phonon spectrum of an adorption system was investigated and it was shown that the functional deformation can be determined from thermodynamic data used to determine isosteric heat of adsorption.

TL;DR: In this article, surface segregation of Sb on Si(100) during molecular beam epitaxy growth is studied near the transition temperature T ∗ from strong surface segregation to kinetically limited segregation.

TL;DR: In this article, it was shown that MoO 3, WO 3 and V 2 O 3 spread over the surface of support oxides such as Al-2 O 3 and TiO 2 at 720 K and tends to form monolayers on these supports while this phenomenon does not seem to occur on SiO 2.

TL;DR: In this article, a scanning tunneling (STM) was constructed for operation in electrochemical conditions in electrolyte solutions, where the electrochemical potentials of the tunneling tip and the substrate with respect to a reference electrode can be simultaneously controlled.

TL;DR: In this article, the results of methanol, ethanol, 1-propanol, and 2-Propanol were examined on a Pd(111) surface containing one-quarter monolayer of adsorbed oxygen atoms.

TL;DR: In this article, it was shown that at the metal-electrolyte interface an Au(100)−(1×1) surface can reconstruct already at room temperature into its hexagonal (5×20) form, when a negative potential is applied.

TL;DR: In this paper, a continuous coverage-dependent conversion from three-fold to two-fold bridged CO has been observed, and an accurate correlation of the development of the IRAS spectra with CO coverage, with CO temperature programmed desorption behavior, and with LEED behavior has been established through studies of the frequency and lineshape of the spectral features.

TL;DR: The early stages of zirconium oxidation have been investigated by X-ray photoelectron spectroscopy (XPS) as mentioned in this paper, where surface oxidation of pure Zr was carried out at room temperature and 10−8 Torr. The film thickness was estimated to be 15±2 A.

TL;DR: In this paper, the authors examined the nature of the active site and the mechanism of desulfurization in the case of thiophene on MoS2 and suggested the possibility of MoMo pairing.

TL;DR: In this paper, a surface model consisting of ordered Na 2 O dimers is proposed for a c(4×2) structure which appears at 0.5 ML Na coverage and the strong interaction of the TiO 2 (110) surface toward the Na overlayer is ascribed to surface states just above the valence band maximum localized on protruded ridge oxygen atoms, from comparison with previous results for a flat MgO(100) surface.

TL;DR: The epitaxial growth of iron oxide overlayers on a platinum (111) single crystal, in the monolayer and the multilayer regimes, was reported in this article.

TL;DR: In this paper, Li + scattering intensities using the previously studied NiAl(110) surface for calibration were determined from the dependence on azimuthal and polar angle of incidence in Li+ scattering and K + multiple scattering analysis.

TL;DR: The adsorption of benzene on Ru(001) in the temperature range 120-250 K has been studied with HREELS, TDS, LEED and ΔΦ measurements as mentioned in this paper.

TL;DR: The technique of molecular dynamics was used to determine the structures of krypton physisorbed on a simple heterogeneous surface as discussed by the authors, where the solid was modelled as an infinite set of straight square-walled grooves cut into an otherwise flat surface.

TL;DR: In this paper, the electron spectra of He2+ with a single crystal Cu(110) surface were obtained for well defined angles of incidence and detection, and from their variation with detection angle the following conclusions were drawn.

TL;DR: In this article, the integral LEED spots from a Pt(110) surface were found to continuously split and broaden during catalytic oxidation of carbon monoxide if the conditions were adjusted in a way that the 1×2 reconstruction of the surface was lifted by adsorbed CO.

TL;DR: In this paper, the (1 × 2) missing-row reconstruction of clean Pt(110) is studied with a new low-energy electron diffraction (LEED) intensity analysis.