http://www.cnr.it/ontology/cnr/individuo/prodotto/ID177846
Quantitative determination of spin-dependent quasiparticle lifetimes and electronic correlations in hcp cobalt (Articolo in rivista)
- Type
- Label
- Quantitative determination of spin-dependent quasiparticle lifetimes and electronic correlations in hcp cobalt (Articolo in rivista) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1103/PhysRevB.82. (literal)
- Alternative label
J. Sánchez-Barriga; J. Fink V. Boni; I. Di Marco; J. Braun; J. Minár; A. Varykhalov; O. Rader; V. Bellini; F. Manghi; H. Eber;t M. I. Katsnelson; A. I. Lichtenstein; O. Eriksson; W. Eberhardt; H. A. Dürr (2010)
Quantitative determination of spin-dependent quasiparticle lifetimes and electronic correlations in hcp cobalt
in Physical review. B, Condensed matter and materials physics
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- J. Sánchez-Barriga; J. Fink V. Boni; I. Di Marco; J. Braun; J. Minár; A. Varykhalov; O. Rader; V. Bellini; F. Manghi; H. Eber;t M. I. Katsnelson; A. I. Lichtenstein; O. Eriksson; W. Eberhardt; H. A. Dürr (literal)
- Pagina inizio
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://prb.aps.org/pdf/PRB/v82/i10/e104414 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Dipartimento di Fisica Unimore, CNR Nano S3 (literal)
- Titolo
- Quantitative determination of spin-dependent quasiparticle lifetimes and electronic correlations in hcp cobalt (literal)
- Abstract
- We report on a quantitative investigation of the spin-dependent quasiparticle lifetimes and electron correlation
effects in ferromagnetic hcp Co?0001? by means of spin- and angle-resolved photoemission spectroscopies.
The experimental spectra are compared in detail to state-of-the-art many-body calculations within
the dynamical mean-field theory and the three-body scattering approximation, including a full calculation of
the one-step photoemission process. From this comparison we conclude that although strong local many-body
Coulomb interactions are of major importance for the qualitative description of correlation effects in Co, more
sophisticated many-body calculations are needed in order to improve the quantitative agreement between
theory and experiment, in particular, concerning the linewidths. The quality of the overall agreement obtained
for Co indicates that the effect of nonlocal correlations becomes weaker with increasing atomic number. (literal)
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