Resonant Raman scattering in Nd{sub 2}O{sub 3} and the electronic structure of Sr{sub 2}RuO{sub 4} studied by synchrotron radiation excitation.

Conference · Thu Dec 03 04:00:00 EST 1998

OSTI ID:11151

Ederer, D L

This paper is intended to illustrate two points. The first being the extensive growth of resonant Raman soft x-ray scattering due to the emergence of third-generation x-ray sources. With these sources, the ubiquitous presence of Raman scattering near the 3d and 4d ionization thresholds has been used to elucidate the excitation process in a number of rare earth and transition metal compounds. Such scattering can produce dramatic changes in the emission spectrum, as we show in our example of inelastic scattering at the 3d threshold of Nd{sub 2}O{sub 3}. Photon-in photon-out soft x-ray spectroscopy is adding a new dimension to soft x-ray spectroscopy by providing many opportunities for exciting research, especially at third-generation synchrotrons light sources. Second, it is very effective to use theory and experiment to characterize the electronic properties of materials. In particular we confirmed in-plane oxygen-ruthenium bonding in Sr{sub 2}RuO{sub 4}, this first copperless perovskite superconductor, by analyses using calculations, soft x-ray emission spectroscopy (SXE) and photoelectron spectroscopy (PES). Measurements of this type illustrate the importance of combining SXE and PES measurements with theoretical calculations.

• Research Organization: Argonne National Lab., IL (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 11151
• Report Number(s): ANL/XFD/CP-97774
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ELECTRONIC STRUCTURE
EMISSION SPECTROSCOPY
EXCITATION
INELASTIC SCATTERING
NEODYMIUM OXIDES
PHOTOELECTRON SPECTROSCOPY
RAMAN EFFECT
RUTHENIUM OXIDES
STRONTIUM OXIDES
SYNCHROTRON RADIATION
X-RAY SPECTROSCOPY