Soft X-ray absorption spectra of ilmenite family

We have carried out soft x -ray absorption spectroscopy to study the electronic structure of ilmenite family, such as MnTiO₃, FeTiO₃, and CoTiO₃ at the soft x -ray beamline, BL23SU, at t he SPring-8. The Ti and M L _2,3 absorption spectra of MTiO₃ (M = Mn, Fe, and Co) show spectra of Ti⁴⁺ and M²⁺ eletron configurations, respectively. Except the Fe L_2,3 spectrum, those spectra were understood within the Oh symmetry around the transition metal ions. The Fe L₃-edge spectrum clearly shows a doublet peak at the L₃ edge, which is attributed to Fe²⁺ state, moreover the very high-resolution the L-edge spectra of transition metals show fine structures. The spectra of those ilmenites are compared.