Fig. 4: Polarization and strain distribution in Fe-BNBT thin films revealed by STEM-GPA analysis.
From: Flexoelectricity-driven giant polarization in (Bi, Na)TiO3-based ferroelectric thin films
a The polarization maps of Fe-BNBT thin films. b The strain maps of Fe-BNBT thin films generated by GPA. c The enlarged polarization maps of Fe-BNBT thin films, with areas 1 and 2 corresponding to the regions outlined by red dashed boxes in a. d The level of strain and corresponding strain gradient of Fe-BNBT thin films as a function of distance along the white arrow in b.
