Abstract
The effects of electron correlations and phonons on the temperature dependence of ultraviolet photoemission and bremsstrahlung isochromat spectra of ferromagnetic Ni are investigated. The spin- and temperature-dependent photocurrent is calculated in the framework of a generalized one-step model of photoemission. Phonons are then into account via temperature-dependent phase shifts. The hole state of photoemission is described by an energy-, spin-, and temperature-dependent self-energy, which rests on a combination of density-functional theory and a Hubbard-type multiband model
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