Agui A, Mizumaki M, Saitoh Y, Matsushita T, Nakatani T, Fukaya A, Torikai E
Synchrotron Radiation Research Center, Japan Atomic Energy Research Institute, Sayo, Hyogo.
J Synchrotron Radiat. 2001 Mar 1;8(Pt 2):907-9. doi: 10.1107/s0909049501000280.
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 the SPring-8. The Ti and M L2,3 absorption spectra of MTiO3 (M=Mn, Fe, and Co) show spectra of Ti4+ and M2+ electron configurations, respectively. Except the Fe L2,3 spectrum, those spectra were understood within the O(h) 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.
我们在SPring-8的BL23SU软X射线束线处进行了软X射线吸收光谱研究，以探究钛铁矿族（如MnTiO3、FeTiO3和CoTiO3）的电子结构。MTiO3（M = Mn、Fe和Co）的Ti和M L2,3吸收光谱分别显示了Ti4+和M2+电子构型的光谱。除了Fe L2,3光谱外，这些光谱在过渡金属离子周围的O(h)对称性范围内是可以理解的。Fe L3边光谱在L3边缘清晰地显示出一个双峰，这归因于Fe2+态，此外，过渡金属的超高分辨率L边光谱显示出精细结构。对这些钛铁矿的光谱进行了比较。
