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Dynamics and statistics of surface diffusion at finite coverages
74 Surface Science 247 (1991) 74-82 North-Holland Dynamics and statistics of surface diffusion at finite coverages G. Wahnstr Institute of Theoretical Physics, ...
[ 1-s2.0-003960289190197Z-main.pdf?_tid=361317b2-f39f-11e4-b854-00000aacb35d&acdnat=1430882766_c6b1a438eda64401f0ee5da18a9e4a77 - Read/Download File

Transport of adsorbates at metal surfaces: from thermal migration to
Collective processes at finite coverages. 88. 2.2.1. Surface ... Observations of surface diffusion: non-metals on metals. 102. 4.1. Atoms. 102 .... dynamics and the corresponding dissipation of the binding energy. .... very definition of a hopping frequency Gh tacitly implies statistic averaging over many hopping events. The time ...
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Dynamics of particles with “key-lock” interactions - Deep Blue
Feb 1, 2008 ... depending on the interaction parameters, the diffusion behavior ranges from ... finite cluster to which they are attached before departing.
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Adatom dynamics and diffusion in a model of O/W„110…
We consider adatom dynamics and diffusion in a lattice-gas model of the O/W110 system under conditions where the ... surface diffusion at finite coverages in the presence of strong ..... getting good statistics for the center-of-mass term Dc.m.,.
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Irreversible Adsorption of particles after diffusing in a gravitational field
Sep 5, 1996 ... by the previously adsorbed particles); iii) surface diffusion and desorption. ... been done including the gravity force in the Brownian dynamics ... Then, a superposition approximation has to be done to study surfaces at finite coverage; this ...... comparison between figures 7 and 8 shows that peaks in g(r) ...
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Transport of adsorbates at metal surfaces : From thermal migration
2.1.2. Langevin dynamics. 2.1.3. Computation of hopping migration parameters. 2.2. Collective processes at finite coverages. 2.2.1. Surface diffusion and mass ...
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Feature Article Adsorption and Surface Diffusion on Generalized
A complete study of adsorption, surface diffusion, clustering, and percolation of adsorbed gases on .... finite correlation lengths and they appear as the most ... surface coverage, not only the activation energy distri- .... to the Fermi-Dirac statistics for the mean occupation ...... should greatly affect the dynamics of migration.
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Adsorption of colloidal particles by Brownian dynamics simulation
Jan 15, 2001 ... of low coverage and saturation at high surface coverage. The. Langmuir model ... and usually no surface diffusion on the substrate surface. The bulk process is not ... Consider a semi-infinite suspension bounded by a wall. Fig. 1. ..... adequate statistics for the precise determination of hexatic and crystal ...
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Colloids with key-lock interactions: non-exponential relaxation
The dynamics of particles interacting by key-lock binding of attached ... from a finite renormalization of the diffusion coefficient to anomalous, subdiffusive behavior. We ... the random walk statistics for the particles' in-plane diffusion. ... dendrimer, and the surface coverage of locks (folate receptors) in the cell membrane.
[ 0702563.pdf - Read/Download File

List of publications – Göran Wahnström - Chalmers University of
Molecular-dynamics study of relaxation of supercooled ortho-terphenyl. Laurent J . Lewis and .... Dynamics and statistics of surface diffusion at finite coverages.
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Cobalt grain gowth on clean Si(100) surfaces. 119. Scanning ... The dynamics of cobalt thin films on ultra–high vacuum clean ... indicating that a Co surface diffusion process dominates the kinetics. .... Figures 5a–5d show TEM diffraction patterns at the. Figure 4. ..... Clustering on surfaces at finite areal coverages. Appl . Surf.
[ smi98-13.pdf - Read/Download File

Theory and Simulation of Jump Dynamics, Diffusion and Phase
B. Dividing Surface Statistics and Dynamics. C. Diffusion and Orientational Randomization at Infinite Dilution. III. Statistical Mechanics of Many-body Diffusion in ...
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Protein adsorption mechanisms on solid surfaces - Taylor & Francis
surface diffusion is at best limited to cluster rearrangements ... The dynamics of the coverage evolution can be modelled ... sticks to the bare substrate with finite probability P; as we shall ... Let us turn now to the statistics of the clusters that self -.
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Quasielastic He atom scattering from surfaces: A stochastic
Jul 16, 2007 ... numerical illustration of the surface dynamics for different types of .... At finite coverages, one usually distinguishes between two diffusion ..... (figures 1(a) and 1(b)) and the numerical details are the same as in figure 1 (the.
[ 0707.2335.pdf - Read/Download File

Hybridization dynamics of surface immobilized DNA - Brandeis
Mar 8, 2004 ... and rates of diffusion from bulk solution.10,15 The coupled ... either through higher surface coverage or longer chains. In ..... In the case of reverse entry, finite nucleation rates exist ..... Figures 1 and 9 highlight the fact that the.
[ JChemPhys_120_4958.pdf - Read/Download File

Surface diffusion of long chainlike molecules - DTU Orbit
We study the coverage dependence of surface diffusion for chainlike molecules by the fluctuating-bond ... At a finite coverage, the memory contribution in EA. T is even larger .... lems in many-chain systems,25 including studies of dynamic quantities ..... Note that the figures are snapshots of a larger system and thus periodic ...
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Molecular Motion at Soft and Hard Interfaces: From - Research
Feb 23, 2007 ... 3), the dynamics of molecular motion is ironically not a major enough concern ..... polymer surface diffusion in the dilute regime of surface coverage. ... volume statistics (94), which is suggestively in agreement with the data. .... surfaces are at an early stage (37, 57, 94, 95), and the consequences of finite sur-.
[ ann. rev. phys. chem (2007).pdf - Read/Download File

This article appeared in a journal published by Elsevier. The
Dec 16, 2008 ... Pulsed field gradient NMR study of surface diffusion in mesoporous adsorbents ... of guest molecules with increasing surface coverage, indicating heterogeneity of the surface ... erties demands establishing detailed structure–dynamics relation- ..... rect Eq. (5) to properly describe the finite diffusivities at c ?
[ MMM_125_58_2009.pdf - Read/Download File

PDF - Science Advances
4 days ago ... We show that it is possible to control the surface coverage of oil droplets using colloidal particles by exploiting the fact that ... colloidal dynamics on the droplets. ..... the initial stage of binding, we ignore the diffusion of colloid-patch ... of the reduced statistics, as we limited the sampling to the small region.
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A Gas-Surface Interaction Model based on Accelerated Reactive
A finite-rate gas-surface interaction boundary condition was developed and ... Large-scale molecular dynamics (MD) simulations were used to ..... bulk material, surface structure, surface coverage, and detailed balance are ..... In this sense understanding heat diffusion in the material becomes important .... collect statistics.
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