Figure 1
From: Ferroelectric switching in ferroelastic materials with rough surfaces
(a) Fully relaxed single domain configuration with smooth charge-free surfaces. (b) The dipole configuration near the surfaces in the area indicated by the black frame in (a). Dipole displacements are amplified by a factor of 200 for clarity. (c) The variation of polarization density along y direction (Py) as a function of external electric field applied along the [11] direction with smooth surfaces. Virtually zero hysteresis is observed during the field cycle. The insets show the typical microstructures at different states as indicated in e1-e5. The black arrows in e1-e5 indicate the direction of the external electric field. The colors in the atomic images are coded by the atomic-level shear strain (ɛxy).
