In this review we give a detailed description of the recently developed helium-3 spin-echo technique and its application to several classes of surface dynamic measurements. We …
We review in this article the current theoretical understanding of collective and single particle diffusion on surfaces and how it relates to the existing experimental data. We begin …
F Hofmann, JP Toennies - Chemical reviews, 1996 - ACS Publications
The atomic-level description of the interatomic interactions determining the structure and dynamics of clean and adsorbate-covered surfaces is one of the most fundamental topics in …
Fabrication of high-performance heterostructure devices requires fundamental understanding of the diffusion dynamics of metal species on 2D materials. Here, we …
AP Graham, F Hofmann, JP Toennies, LY Chen… - Physical review …, 1997 - APS
The quasielastic peak broadening and the frustrated translational vibrations of a low coverage (Θ Na< 5%) of Na atoms on a Cu (001) surface have been probed with high …
G Caratti, R Ferrando, R Spadacini, GE Tommei - Physical Review E, 1996 - APS
The noise-activated diffusion of a classical particle in spatially periodic two-dimensional (2D) systems is studied by solving the corresponding Fokker-Planck equation. The particle is …
The diffusion of adatoms and molecules on a surface at low coverage can be measured by helium scattering. The experimental observable is the dynamic structure factor. In this article …
In this paper, we investigate the energetics and diffusion barriers of arsenic and gallium adatoms on smooth and stepped GaAs (001) surfaces. We use molecular-dynamics energy …
I Vattulainen, J Merikoski, T Ala-Nissila, SC Ying - Physical review letters, 1997 - APS
We study the non-Arrhenius behavior of surface diffusion near the second-order phase transition boundary of an adsorbate layer. In contrast to expectations based on macroscopic …