Journal
PHYSICAL REVIEW B
Volume 103, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.103.115121
Keywords
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Funding
- European Research Council (FP7/2007-2013)/ERC [321319]
- Swedish Research Council
- Carl Tryggers Foundation for scientific research
- Marie Sklodowska-Curie Actions [INCA 600398]
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The study investigates electron correlation and itinerance effects in Ni using Ni LVV Auger spectra and corresponding 2p(1/2), 2p(3/2), and 6 eV satellite photoelectrons. It finds phenomena related to double hole states.
Ni LVV Auger spectra, in coincidence with the corresponding 2p(1/2), 2p(3/2), and 6 eV satellite photoelectrons, have been used to examine electron correlation and itinerance effects in Ni. In coincidence with the 2p(3/2) core level, the Auger spectral shape is represented by localized 3d(8) and itinerant valence final states with an additional 3d(7) Auger shake-up contribution. The spectra in coincidence with the 6 eV satellite probe the decay of localized 2p(5)3d(9) double hole states, leading to 3d(7) final states. It is found that a fraction of the double hole states delocalize before the Auger decay. A similar delocalization is observed for the double hole states produced by the L2L3M45 Coster-Kronig process, and the delocalization rates have been determined.
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