Step Bunching and Meandering as Common Growth Modes: A Discrete Model and a Continuum Description
This paper resolves the contradiction between step bunching and step meandering in unstable step-flow growth by demonstrating that a (2+1)D Vicinal Cellular Automaton model and a continuum differential-difference PDE description can both capture their simultaneous coexistence and produce similar surface patterns when linked through a properly shaped potential energy landscape.