Observation of surface to bulk interatomic Auger decay from Ta(100)
Journal Article
·
· Physical Review, B: Condensed Matter; (USA)
- Department of Physics, Brandeis University, Waltham, MA (USA)
- Department of Physics, Rutgers University, Piscataway, NJ (USA)
- Department of Physics, Brookhaven National Laboratory, Upton, NY (USA)
- National Synchrotron Light Source, Brookhaven National Laboratory, Upton, NY (USA)
Core-valence-valence ({ital CVV}) Auger spectra from Ta(100) taken in coincidence with bulk and surface-shifted 4{ital f}{sub 7/2} core-level emission are presented. These data are compared with self-convolutions of calculations of the {ital d}-band densities of states for the surface and subsurface layers of a nine-layer slab. Agreement of the bulk spectrum with the calculation is good; agreement for the surface spectrum is very poor. These data are explained by proposing an interatomic surface to bulk Auger decay mode for the surface core hole that is competitive with the conventional {ital CVV} decay process.
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6787630
- Journal Information:
- Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 41:18; ISSN PRBMD; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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