Fig. 7
Titanate magnetic phase diagram versus rotation angle. The a out-of-plane rotation (\(R_4^ +\)) and b in-plane rotation angles (\(M_3^ +\)) accessed by epitaxial strain (red) and the nonlinear phononics approach in +1.5% strained GdTiO3 (blue) cannot account for the change in magnetism to the A-AFM phase. The lower horizontal axis shows the A-site while the upper horizontal axis shows a least squares fit to the rotation angle from the simulated structures in the corresponding magnetic phase. Phase boundaries have been drawn schematically with magnetic phases identified. The predicted A-AFM phase is shown in the purple region. Arrows showing the qualitative change in rotation angle have been included for the compressive/tensile strain (solid) and peak electric field E0 (dashed)
