On the origin of differential phase contrast at a locally charged and globally charge-compensated domain boundary in a polar-ordered material.


Differential phase contrast (DPC) imaging in the scanning transmission electron microscope is applied to the study of a charged antiphase domain boundary in doped bismuth ferrite. A clear differential signal is seen, which matches the expected direction of the electric field at the boundary. However, further study by scanned diffraction reveals that there… (More)
DOI: 10.1016/j.ultramic.2015.03.016


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