Fig. 8

Structural contributions to the magnetic phase change. a Percent change in the symmetry-adapted mode amplitude for the Raman component of the non-equilibrium strained GdTiO3 structure. Blue (red) corresponds to an increase (decrease) in amplitude. Note that the percentages sum to 100%. b Nonlinear phononics change in the magnetic energy difference between the A-AFM and FM phases with octahedral rotations only (dashed), rotations and octahedral distortions (dotted), and total Raman response (solid)