Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2003-06-03
Physics
Condensed Matter
Statistical Mechanics
11 pages, 11 figures
Scientific paper
10.1103/PhysRevE.70.021604
We investigate the growth of a film of some element B on a substrate made of another substrance A in a model of molecular beam epitaxy. A vertical exchange mechanism allows the A-atoms to stay on the growing surface with a certain probability. Using kinetic Monte Carlo simulations as well as scaling arguments, the incorporation of the A's into the growing B-layer is investigated. Moreover we develop a rate equation theory for this process. In the limit of perfect layer-by-layer growth, the density of A-atoms decays in the B-film like the inverse squared distance from the interface. The power law is cut off exponentially at a characteristic thickness of the interdiffusion zone that depends on the rate of exchange of a B-adatom with an A-atom in the surface and on the system size. Kinetic roughening changes the exponents. Then the thickness of the interdiffusion zone is determined by the diffusion length.
Bierwald Boris
den Driesch Michael von
Farkas Zeno
Lee Sang Bub
Wolf Dietrich E.
No associations
LandOfFree
Interfacial mixing in heteroepitaxial growth does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Interfacial mixing in heteroepitaxial growth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interfacial mixing in heteroepitaxial growth will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-78763