Segregation instabilities of moving interfaces.
The segregation of solute particles on a moving interface leads to the appearance of two types of instabilities near competing velocity thresholds. This behavior is shown to occur in a variety of exactly solvable models where the interface motion is coupled to a diffusion process of the solute particles. These models directly apply to the propagation of internal domain walls, but can also be generalized to surfaces of growing crystals in the kinetics-limited regime.
Korzhenevskii
Alexander L
AL
Institute for Problems of Mechanical Engineering, RAS, Bol'shoi prosp. V O, 61, St. Petersburg, 199178, Russia.
Bausch
Richard
R
Schmitz
Rudi
R