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2010
For the first time, this book unites the theory, experimental techniques and computational tools used to describe the diffusion of atoms, molecules and nanoparticles across metal surfaces. Starting with an outline of the formalism that describes diffusion on surfaces, the authors guide the reader through the principles of atomic movement, before moving
Grazyna Antczak, Gert Ehrlich
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For the first time, this book unites the theory, experimental techniques and computational tools used to describe the diffusion of atoms, molecules and nanoparticles across metal surfaces. Starting with an outline of the formalism that describes diffusion on surfaces, the authors guide the reader through the principles of atomic movement, before moving
Grazyna Antczak, Gert Ehrlich
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Segregation and diffusion on semiconductor surfaces
Physical Review B, 1996The surface segregation of phosphorus, antimony, and boron in Si molecular-beam epitaxy is investigated experimentally at low temperatures. Rate and temperature dependent measurements are explained by a segregation model, which connects surface segregation with surface diffusion.
, Nützel, , Abstreiter
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Resonant diffusion on modulated surfaces
Advances in Colloid and Interface Science, 2005Some theoretical methods for description of the diffusion on modulated surfaces are reviewed. A general formula for calculation of the diffusion coefficient of a particle moving in the field of a periodic potential is developed, which takes into account both the potential barrier effect and the dependence of the friction coefficient on the potential ...
Tsekov, R., Evstatieva, E.
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Surface Diffusion on Inhomogeneous Surfaces
2009We address the issue of topology and diffusion on inhomogeneous surfaces by employing realistic interatomic potentials and a set of atomic-scale simulations tools, such us structural optimization and molecular dynamics. We focus on heterogeneous combinations of transition metals substrate/adsorbate systems, motivated by experimental evidence pointing ...
H. Bulou, C. Goyhenex, C. Massobrio
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Surface diffusion and island density
Physical Review Letters, 1992A Comment on the Letter by Mo, Kleiner, Webb, and Lagally, Phys. Rev. Lett. 66, 998 (1991).
Pimpinelli, Alberto +2 more
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Long jumps in surface diffusion
Journal of Colloid and Interface Science, 2004Diffusion on metal surfaces is often viewed as the movement of atoms jumping between nearest-neighbor sites. However, statistical predictions suggest that at elevated temperatures longer jumps should become important. Now, with instruments such as the field ion microscope and the scanning tunneling microscope, which reveal individual adsorbed atoms, it
Grazyna, Antczak, Gert, Ehrlich
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Diffusion in the diabatic surface layer
Journal of Geophysical Research, 1962Diffusion from point and line sources in an adiabatic surface layer were briefly discussed using a similarity method by Ellison, following a suggestion made at the 1958 Oxford Symposium by Batchelor. The chief result is that the ground concentration at a downwind distance x, from a point source at ground level, is found to be proportional to xm, where ...
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Surface diffusion in porous catalysts
Physical Chemistry Chemical Physics, 2010This paper presents the application of pulsed field gradient (PFG) nuclear magnetic resonance (NMR) to observe surface diffusion of 1-octene in porous 1 wt% Pd/theta-Al(2)O(3) catalyst trilobes. We demonstrate for the first time the ability to identify diffusion on the pore surfaces unambiguously at ambient conditions in saturated porous media; this ...
Daniel, Weber +4 more
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Microscopic theory of surface diffusion
Physical Review B, 1990We develop a microscopic theory of surface diffusion of adatoms using the Mori continued-fraction formalism. Along the surface plane, the adatom motion is extended leading to diffusive behavior, while motion perpendicular to the plane is assumed bounded and oscillatory.
, Ala-Nissila, , Ying
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Dephasing and diffusion on the alveolar surface
Physical Review E, 2017We propose a surface model of spin dephasing in lung tissue that includes both susceptibility and diffusion effects to provide a closed-form solution of the Bloch-Torrey equation on the alveolar surface. The nonlocal susceptibility effects of the model are validated against numerical simulations of spin dephasing in a realistic lung tissue geometry ...
Buschle, L R +11 more
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