Fig. 6: HR-TEM and HAADF images of LNCO-R sample.

a HR-TEM, b, c HAADF images of LNCO-R sample corresponding to the yellow squares in a. d The line profile across A- and B-site elements as indicated in b. The contrast in the ellipse in c was enhanced to highlight the dislocation in LNCO-SML. The surface direction is [020]. LNCO-R represents H2-reduced LaNi0.05Co0.05Cr0.9O3 sample. LNCO-SML represents La(NiCo)OΔ submonolayer.