Figure 3
From: Tilt engineering of exchange coupling at G-type SrMnO3/(La,Sr)MnO3 interfaces

Energy as a function of tilting angle for three selected lattice.
The tilting-angle-dependent total free energy (E) per formula unit for three specific lattice parameters of 3.78 Å (a), 3.83 Å (b) and 3.90 Å (c), corresponding to the value of LAO, SMO and STO respectively. Energy of no-tilting case is set to zero as a reference. The tilting angle dependent energy for a− and c− tilting is shown in the expanded scale in the inset of (b).