A soft x-ray resonant inelastic x-ray scattering (RIXS) syllabus - Unam

A soft x-ray resonant inelastic x-ray scattering
(RIXS) syllabus
The main ideas that make RIXS a very useful tool to study the electronic structure of
solid compounds will be presented in this work. This photon-in photon-out technique
allows a direct determination of symmetry and site selected density of states, both
occupied and unoccupied. A basic experimental configuration and calculations using
atomic multiplet models to interpret RIXS spectra will be discussed. Transition metal
fluorides and oxides will be used as examples of RIXS work that provides crucial
electronic structure information. For instance, a comparison of absorption and
emission spectra at the fluorine K and metal L2,3 edges allows a detailed study of the
evolution of the Mott-Hubbard transition metal di-fluoride insulators. A simple
extrapolation of these results to the corresponding monoxides is in very good
agreement with the Zaanen-Sawatzky-Allen model. For the same compounds RIXS spectra at
the metal L2,3 edge give information about d-excited and charge transfer states. It
will also be shown that RIXS spectra give a detailed information about the fast decay
dynamics of the 2p_{3/2} hole in ionic orthovanadates and about the symmetry and
nature of the gap of the lanthanum-strontium cobaltates.
Primary authors : Prof. JIMENEZ-MIER, Jose (ICN-UNAM)
Co-authors : Dr. HERRERA-PEREZ, Guillermo (CINVESTAV) ; Mr. OLALDE-VELASCO, Paul (Instituto de
Ciencias Nucleares, UNAM) ; Mr. CARABALI-SANDOVAL, Giovanni (Instituto de Ciencias Nucleares, UNAM) ;
Prof. MOEWES, Alexander (University of Saskatchewan, Canada) ; Dr. WILKS, Regan (University of
Saskatchewan, Canada) ; Dr. YANG, Wan -li (The Advanced Light Source, Berkeley) ; Dr. DENLINGER, Jonathan
(The Advanced Light Source, Berkeley) ; Prof. EDERER, David (Tulane University) ; Prof. CHAVIRA, Elizabeth
(Instituto de Investigaciones en Materiales, UNAM)

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Fluorescence Photon energy (eV)
L 3
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3s -> 2p 3/2
J. Phys. B 36, L173 (2003).
3s -> 2p 1/2
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