Correlation effects in the low-energy region of nickel photoemission spectra

Citation
F. Manghi et al., Correlation effects in the low-energy region of nickel photoemission spectra, PHYS REV B, 59(16), 1999, pp. R10409-R10412
Citations number
19
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
59
Issue
16
Year of publication
1999
Pages
R10409 - R10412
Database
ISI
SICI code
0163-1829(19990415)59:16<R10409:CEITLR>2.0.ZU;2-9
Abstract
The role of on-site correlation in the low-energy excitations of nickel is studied by comparing the results of high-angular and high-energy resolution photoemission spectroscopy with quasiparticle states calculated as a three -body scattering solution of a multiorbital Hubbard model. It is found that correlation effects modify the energy dispersion and spin polarization of electron states and are essential in order to get a quantitative agreement with experimental data.