Extended Data Fig. 6: Lattice distortion as a function of position for an eight-unit-cell-thick BFO slab.
From: Freestanding crystalline oxide perovskites down to the monolayer limit
Clear lattice distortions c driven by the surface electric field are found near the polar surface. l is the thickness of the slab and z is the distance from the surface. The dotted line is a guide to the eye.
