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

Article

关键词: FERROMAGNETIC NICKEL;    BAND-STRUCTURE;    NI;    TEMPERATURE;    STATES;   

DOI  :  10.1103/PhysRevB.59.R10409

来源: SCIE

【 摘 要 】

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.

【 授权许可】

Free