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Experimental assignment of many-electron excitations in the photoionization of NiO

Journal Article · · Physical Review. B, Condensed Matter and Materials Physics
 [1];  [2];  [1];  [3];  [1];  [4];  [4]
  1. National Institute of Standards and Technology
  2. Synchrotron SOLEIL
  3. Brookhaven National Laboratory
  4. BATTELLE (PACIFIC NW LAB)
+ Show Author Affiliations

Resonant photoelectron spectroscopy can uniquely identify the nature of the complicated many-electron effects that accompany the photo-ionization of an inner-shell core hole. Careful analysis of the photon-energy dependence of the Ni KLL Auger de-excitation spectra at and above the Ni 1s photo-ionization threshold has identified the satellite structure that appears in the Ni photo-ionization spectra of NiO as Ni metal 3d eg ? Ni metal 3d eg and O ligand 2p eg ? Ni metal 3d eg charge-transfer excitations, respectively. These assignments elucidate the conflicting theoretical predictions of the last three decades in addition to other anomalous effects in the spectroscopy of this unique material.

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1510978
Report Number(s):
PNNL-SA-131960
Journal Information:
Physical Review. B, Condensed Matter and Materials Physics, Vol. 97, Issue 24
Country of Publication:
United States
Language:
English

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