Figure 1
From: The Origin of Local Strain in Highly Epitaxial Oxide Thin Films

Schematic illustration showing the surface-step-terrace dimension of the substrate can not exactly accommodate integer unit cells or atomic planes of the film.
From: The Origin of Local Strain in Highly Epitaxial Oxide Thin Films
Schematic illustration showing the surface-step-terrace dimension of the substrate can not exactly accommodate integer unit cells or atomic planes of the film.