Figure 2.

The SMS spectra of Fe₃O₄, measured at selected pressures and temperatures. The experimental points, fitting curves and spectral components corresponding to particular iron sites in different structural and magnetic phases are presented. The sextet components, corresponding to the tetrahedral and octahedral sites in the spinel phase, are shown in blue and red colors. At P = 8 GPa and T = 10 K, additional component associated with the octahedral site, is shown in cyan color. The sextet components, corresponding to the bicapped trigonal prismatic and octahedral sites in the post-spinel phase, are shown in orange and olive colors. The paramagnetic doublet component is shown in purple color.