Oblique evaporation and surface diffusion [PDF]
The special structure of obliquely evaporated films has its origin in shadowing phenomena during film growth. Because of shadowing, the film consists of bundles of inclined columns with the bundles being aligned perpendicularly to the vapour incidence ...
Abelmann, Leon, Lodder, Cock
core +3 more sources
Directionality in van der Waals Interactions: the Case of 4-Acetylbiphenyl Adsorbed on Au(111) [PDF]
We report on a theoretical study of adsorption of 4-Acetylbiphenyl molecule and its diffusion properties in the main directions of the Au(111) surface.
Lorente, N., Robles, R., Zobac, V.
core +2 more sources
Wetting of copper surface by solid nanosized lead particles: molecular dynamics study [PDF]
Using molecular dynamics method, the solid state wetting in the system Pb (nanoparticle) / Cu (substrate) has been observed and studied. It has been found that the solid state spreading mechanism corresponds to the surface diffusion developed via the ...
A.V. Chirkov, V.M. Samsonov
doaj +1 more source
Tunneling of Hydrogen and Deuterium Atoms on Interstellar Ices (Ih and ASW)
Model calculations are performed to investigate the kinetic isotope effect of hydrogen and deuterium atom diffusion on hexagonal ice and amorphous solid water. Comparisons with experimental results by Kuwahata et al. (Phys. Rev. Lett., Sep. 2015, 115 (13)
Gunnar Nyman
doaj +1 more source
Surface and interstitial Ti diffusion at the rutile TiO2(110) surface [PDF]
Diffusion of Ti through the TiO2 (110) rutile surface plays a key role in the growth and reactivity of TiO2. To understand the fundamental aspects of this important process, we present an analysis of the diffusion of Ti adspecies at the stoichiometric ...
Anisimov +50 more
core +1 more source
Reconsideration of Nanowire Growth Theory at Low Temperatures
We present a growth model that describes the nanowire length and radius versus time in the absence of evaporation or scattering of semiconductor atoms (group III atoms in the case of III-V NWs) from the substrate, nanowire sidewalls or catalyst ...
Vladimir G. Dubrovskii
doaj +1 more source
Equilibrium neck shapes for initial stages of solid-state sintering due to surface diffusion in a disk model of clays [PDF]
We study equilibrium neck shapes corresponding to initial stages of solid-state sintering, using a microscopic model of clays in which particles have a uniform disk shape with a microscale diameter R and a nanoscale thickness δ = R/100.
Medved I., Moravčíková J.
doaj +1 more source
Study of the Immersion Freezing Theory Using the Classical Nucleation Framework
The classical nucleation theory for immersion freezing was used for the simulation of ice nuclei particle activation under atmospheric conditions. A modification of the surface diffusion energy was introduced that was based on the concept of a two ...
Mihalis Lazaridis
doaj +1 more source
Role of Rotations on Surface Diffusion of Water Trimers on Pd\{111\} [PDF]
Diffusion barriers for a cluster of three water molecules on Pd(111) have been estimated from ab-initio Density Functional Theory. A model for the diffusion of the trimer based in rotations yields a simple explanation of why the cluster can diffuse ...
de Andres, P. L., Ranea, Victor A.
core +3 more sources
Modelling of catalytic reactivity of inhomogeneous surfaces in monomer-monomer reactions
The kinetics of a A1 + A2 -> A1A2 reaction on inhomogeneous surfaces with continuously distributed adsorption sites is investigated numerically using two phenomenological models. One of them includes: the bulk diffusion of reactants from a bounded vessel
Vladas Skakauskas, Pranas Katauskis
doaj +1 more source

