2010/01/08 by Jungho Kim, Yuri Shvyd’ko, Yuri Shvyd'ko +1
Materials Science · Physics and Astronomy · #Algorithm #Charge (physics) #Computer science #Crystallography and Radiation Phenomena #Database #Particle physics #Physics #X-ray Diffraction in Crystallography #X-ray Spectroscopy and Fluorescence Analysis #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.83.235109
published as Phys. Rev. B 83, 235109 (2011) · 10 pages, 6 figures, 1 table
arxiv created 2010/01/08 · openalex publication_date 2011/06/06 · arxiv updated 2015/05/14 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Momentum-resolved resonant inelastic x-ray scattering (RIXS) spectroscopy has been carried out successfully at the Fe K-edge for the first time. The RIXS spectra of a FeBO3 single crystal reveal a wealth of information on \ensuremath≃ 1--10 eV electronic excitations. The IXS signal resonates when the incident photon energy approaches the pre-edge (1\mathrms\ifmmode \else \=\fi-3d) and the main-edge (1\mathrms\ifmmode \else \=\fi-4p) of the Fe K-edge absorption spectrum. The RIXS spectra measured at the pre-edge and the main-edge show quantitatively different dependences on the incident photon energy, momentum transfer, photon polarization, and temperature. We present a multielectron analysis of the Mott-Hubbard (MH) and charge transfer (CT) excitations, and calculate their energies. Electronic excitations observed in the pre-edge and main-edge RIXS spectra are interpreted as MH and CT excitations, respectively. We propose the electronic structure around the chemical potential in FeBO3 based on the experimental data.