Showing papers in "Progress in Surface Science in 1993"

TL;DR: A review of the present understanding of the chemisorption of oxygen on metal surfaces such as Cu, Ni, and Ag is given in this paper, with special emphasis on how recent scanning tunneling microscopy results for the dynamics of oxygen-induced reconstructions in many cases give new insight also into the static surface structures.

TL;DR: In this article, a review of single-crystal experiments conducted under isothermal, low pressure conditions (p < 10-3 mbar) is presented, where two different reaction systems have been investigated: catalytic CO oxidation on various Pt and Pd orientations and catalytic NO reduction on Pt(100) using CO, H2, or NH3 as the reducing agent.

TL;DR: In this paper, the authors describe a theory of flotation of small and medium-size particles less than 50μ in radius, when their precipitation on a bubble surface depends more on surface forces than on inertia forces, and deformation of the bubble due to collisions with the particles may be neglected.

TL;DR: In this paper, a review of the present understanding of vibrational dynamics in molecule-surface interactions is given, divided into two parts, on the whole, focusing on vibrational excitation of molecular beams interacting with solid surfaces in dynamical processes such as scattering, adsorption and desorption.

TL;DR: In this paper, it was shown that the Fowler-Nordheim theory does not account for the curvature of the tip of a pointed emitter and showed that the calculated results, plotted as log J/V 2 vs. 1/V, do not exhibit the straight line behavior predicted by the F-N theory.

TL;DR: In this paper, the authors discuss the evidence accumulated from variety of spectroscopic experimental techniques for three systems: a Mott-Hubbard transition, a Peierls-like distortion, and a Wilson transition.

TL;DR: The angular intensity distribution of photoelectrons (or Augerelectrons) with high kinetic energy (> 400 eV), emitted from atoms of adsorbed molecules on single crystal surfaces, may exhibit pronounced peaks that are due to the high cross section for forward scattering by nearest neighbor atoms as discussed by the authors.

TL;DR: In this paper, the effect of ions diffusing inside the solut ion of the ions of e lec t ro ly te depos i t ed on the model was investigated.

TL;DR: In this paper, Monte Carlo simulations of homoepitaxial growth on Si(100) surfaces by molecular beam epitaxy are reviewed, including the important characteristics of the growth, the events needed to be taken into account in the simulations, i.e., the arrival of atoms, diffusion of atoms on the surface, dimer formation and the dimer flip and the desorption events.

TL;DR: In this article, a comparison of the results obtained for the chemisorption and multilayer adsorption of SO2 on Cu(111, Ag(111), Ag(100), and Ag(110) in the temperature range between 80 K and 900 K is given.

TL;DR: In this paper, the CO-oxidation reaction was simultaneously characterized by mass spectrometric analysis and by work function measurements via a Kelvin probe with an area of ≈ 30 mm2 being probed.

TL;DR: In this article, the authors consider the steady state resulting on pulling at a constant velocity U from a liquid, an infinite plate oriented at an angle ct 0 within the horizontal line, and restrict themselves to the cases where the following method for treating the problem is applicable at a sufficient approximation (about 1%).

TL;DR: In this article, the authors introduced a new way of estimating the image potential state energies from the tight binding approach as well as in the nearly free electron approximation, and the localization mechanism and the criteria for Tamm and Shockley states were demonstrated.

TL;DR: In this article, the results of a number of recent papers on hydrogen adsorption on Rh(110), Rh(311), and Fe(211) as well as on Ni(111) and Fe (110) surfaces were compared.

TL;DR: In this article, the authors review theoretical and experimental works which substantiate that island metal films, contrary to bulk metals and similar to semiconductors and gas plasmas, are systems in which hot (nonequilibrium) electrons can be generated under stationary conditions.

TL;DR: In this paper, the important steps of film formation via deposition, migration, nucleation, and film completion are studied by combination of microscopy (like STM) and diffraction (like spot profile analysis of LEED).

TL;DR: In this article, the problems concerning adsorption of molecular and atomic hydrogen on noble metal surfaces are discussed and the kinetics of this process and the features of physisorbed and chemisorbated adsorbate are described on the basis of currently available data.

TL;DR: In this paper, the surface states at the Γ point of (001) semiconductor semi-infinite superlattices were studied by using an emiprical tight-binding Hamiltonian together with the surface Green function matching (SGFM) method.

TL;DR: Using the thermodynamics of irreversible processes as the basis, the problem of the mass exchange between nonfreezing interlayers has been solved for the slit model of a pore filled with ice, as well as between the thawed and the frozen zone of a porous body.

TL;DR: In this paper, a short review on several experimentally observed effects of finite sample temperature in angle-resolved photoemission spectra, and how they were interpreted within the framework of available theories is given.

TL;DR: Field emission is one of the oldest surface science techniques, its roots reaching back about 250 years to the time of enlightenment as discussed by the authors, and it has been investigated extensively in the literature.

TL;DR: In this article, Car-Parrinello simulations of clean and adsorbate covered surfaces of Si, Ge and GaAs (110) have been presented for the clean and hydrogenated GaAs(110) surfaces.

TL;DR: In this paper, the case of flotation of a bulk hydrophobic mineral in the absence of a collector is considered and a simple quantitative criterion of floatability containing the zeta-potential is proposed.