The optically active center of Er-doped Si produced by laser ablation

Local Structure Study of Lanthanide Elements by X-Ray Absorption Near Edge Structure Spectroscopy

This paper describes a systematic study of the spectra and local structures of lanthanide (Ln) L-edge XANES. We found that Ln L₁ and L₃ -edge XANES spectra exhibit characteristic features correlated to their local symmetry through experimental and theoretical simulations. We also propose a simple local structure index criterion for a combination of XANES study and theoretical simulation. Possible solutions of intrinsic problems such as low resolution of characteristic features in the Ln L-edge XANES and site distributions are also discussed.