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Atomic correlations in itinerant ferromagnets: quasi-particle bands of nickel

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 نشر من قبل Florian Gebhard
 تاريخ النشر 2002
  مجال البحث فيزياء
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We measure the band structure of nickel along various high-symmetry lines of the bulk Brillouin zone with angle-resolved photoelectron spectroscopy. The Gutzwiller theory for a nine-band Hubbard model whose tight-binding parameters are obtained from non-magnetic density-functional theory resolves most of the long-standing discrepancies between experiment and theory on nickel. Thereby we support the view of itinerant ferromagnetism as induced by atomic correlations.



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