Fig. 4

Atomic-scale structure of a LSCO (3)/LSMO (3)/LSCO (3) heterostructure. a Layer-resolved oxygen octahedral rotations of a 3/3/3 heterostructure on SrTiO₃ determined from fits to crystal truncation rods and half-order superstructure rods. b Layer-resolved in-plane B-O-B (B = Ti layers 0–3, Cr layers 4–6, Mn layers 7–9, Cr layers 10–12) The dashed line indicates the bulk Mn-O-Mn bond angle for LSMO. c Layer-resolved B-O displacements, Δ, along the growth direction for the 3/3/3 heterostructure. Δ represents the displacements in Angstroms, of the oxygen ions relative to the cation (Ti,Mn,Cr) z positions in each layer. Positive Δ are toward the film surface. The error bars are determined from the standard deviation of the atomic positions determined from the fits to the crystal truncation rods