Fig. 3
From: Material structure, properties, and dynamics through scanning transmission electron microscopy
Effect of specimen tilt in measuring oxygen octahedral tilts in BFO with 10.7 nm thickness. Oxygen octahedral tilt maps as a function of specimen tilt and defocus calculated from simulated a BF and c ABF images, respectively. b, d Line profiles of octahedral tilts averaged over vertical rows of the tilt maps shown in a and c, respectively. The dotted lines in the graphs indicate the tilt value (± 10.5°) of bulk BFO for the [110] pc projection. Simulations for 100 kV, spherical aberration coefficient − 0.037 mm, probe semiangle 31 mrad, and BF and ABF collection angles 0–1 and 8–20 mrad, respectively. Reproduced from Kim et al. 2017. Copyright 2017 with permission from Elsevier