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cond-mat.str-el2002★ 35 cited
Atomic correlations in itinerant ferromagnets: quasi-particle bands of nickel
J. Buenemann, F. Gebhard, T. Ohm +11
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 nin…
cond-mat.str-el2002★ 51 cited
Landau-Gutzwiller quasi-particles
J. Buenemann, F. Gebhard, R. Thul
We define Landau quasi-particles within the Gutzwiller variational theory, and derive their dispersion relation for general multi-band Hubbard models in the limit of large spatial…