Damping of growth oscillations in molecular beam epitaxy: A renormalization group approach
In: Journal de physique : 1, Jg. 7 (1997) ; Nr. 12, S. 1627-1638
ISSN: 1286-4862, 1155-4304
Zeitschriftenaufsatz / Fach: Physik
The conserved Since-Gordon equation with nonconserved shot noise is used to model homoepitaxial crystal growth. With increasing coverage the renormalized pinning potential changes from strong to weak. This is interpreted as a transition from layer-by-layer to rough growth. The associated length and time scales are identified, and found to agree with recent scaling arguments. A heuristically postulated nonlinear term $\nabla^2(\nabla h)^2$ is created under renormalization.