Mapping ellipticity (\(\epsilon\)) and rotation (\(\rho\)) of A-cation atomic columns in the LSMO/LFO/STO-(111) heterostructure. a STEM-ADF image of the heterostructure. There is a clear elongation of the A-cation atomic columns in the LFO layer (blue ellipses), compared to the STO and LSMO. b
\(\epsilon\) and \(\rho\) of the individual A-cations plotted as arrows. c Same as in b, but summed as a function of distance from the LFO/STO interface. d
\(\epsilon\) as a function of distance from the LFO/STO interface.