Figure 4 | Scientific Reports

Figure 4

From: Structural degeneracy and formation of crystallographic domains in epitaxial LaFeO3 films revealed by machine-learning assisted 4D-STEM

Figure 4

Phase mapping of the identical region at (a) ground state at 300 K, (b) after heat treatment at 600 K (c) 900 K and (d) at 1200 K for 5 min, respectively. Panel (b) and (c) corresponds to the boxed region of (a) and (d). (e) Dark field image reconstructed from a 4D-STEM dataset taken from LFO/DSO heterojunction. (f) Average DPs of LFO and DSO from the given dataset. (g) Atomic resolution STEM image from the LFO/DSO interface. The rows of La/Dy atomic columns show alternating left–right shifts as indicated with the red and green arrows. The displacement follows the same pattern dictated by the DSO substrate and corresponds to a-type domain (cf. Fig. 1d).

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