Resonant inelastic x-ray scattering in single-crystal superconducting PrFeAsO0.7

Details Resonant inelastic x-ray scattering in single-crystal superconducting PrFeAsO0.7 Resonant inelastic x-ray scattering in single-crystal superconducting PrFeAsO0.7

2009-10-08

arxiv.org/abs/0910.1423v1

Physics

Condensed Matter

Strongly Correlated Electrons

2 pages, 2 figures

Scientific paper

Resonant inelastic x-ray scattering (RIXS) spectra at the Fe K-edge were measured for a single crystal of the iron oxypnictide superconductor PrFeAsO0.7 (Tc=42 K). They disclose a weak, broad feature centered around 4.5 eV energy loss, which is slightly resonantly enhanced when the incident energy is tuned in the vicinity of the 4p white line. We tentatively ascribe it to the charge-transfer excitation between As 4p and Fe 3d.

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