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On the Electronic Structure of Electron Doped LaFeAsO1-xFx
- Source :
- Journal of the Physical Society of Japan, 77, 117. Physical Society of Japan
- Publication Year :
- 2008
-
Abstract
- We investigated the recently found superconductor LaFeAsO1-xFx by X-ray absorption spectroscopy (XAS). A shift in the chemical potential is visible in both the Fe L-2,L-3 and O K edge spectra which emphasizes the importance of band effects and moderate correlations in these compounds. From experimental Fe L-2,L-3 edge spectra and charge transfer multiplet calculations we gain further information on important physical values such as hopping parameters, the charge transfer energy Delta, and the on-site Hubbard U. Furthermore we find the system to be very covalent with a large amount of ligand holes.
- Subjects :
- Superconductivity
X-ray absorption spectroscopy
Materials science
Condensed matter physics
Absorption spectroscopy
General Physics and Astronomy
Electronic structure
Oxypnictides
Spectral line
K-edge
Electronic Structure
Taverne
Condensed Matter::Strongly Correlated Electrons
Spectroscopy
Multiplet
Subjects
Details
- Language :
- English
- ISSN :
- 00319015
- Database :
- OpenAIRE
- Journal :
- Journal of the Physical Society of Japan, 77, 117. Physical Society of Japan
- Accession number :
- edsair.doi.dedup.....ca3d5a7f4708967ca244d0c7f51b5ee9