Atomic correlations in itinerant ferromagnets: Quasi-particle bands of nickel
Abstract
The Gutzwiller theory is demonstrated to resolve most of the long-standing discrepancies between experiment and theory on the quasi-particle bands of ferromagnetic nickel. This is confirmed by new angle-resolved photoelectron spectroscopy data along various high-symmetry lines of the bulk Brillouin zone obtained under full control of the three-dimensional momentum. Our findings support the view of itinerant ferromagnetism as a consequence of atomic correlations.
- Publication:
-
EPL (Europhysics Letters)
- Pub Date:
- March 2003
- DOI:
- 10.1209/epl/i2003-00128-3
- arXiv:
- arXiv:cond-mat/0204142
- Bibcode:
- 2003EL.....61..667B
- Keywords:
-
- 71.20.Be;
- 71.10.Fd;
- 71.10.Ay;
- Transition metals and alloys;
- Lattice fermion models;
- Fermi-liquid theory and other phenomenological models;
- Condensed Matter - Strongly Correlated Electrons
- E-Print:
- 4 page REVTeX 4.0, one figure, one table