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Abstract:
This work reports on high resolution photoelectron spectroscopy for the valence band of Co2Mn1−xFexSi (x= 0, 0.5, 1) excited by photons of about 8 keV energy. The measurements
show a good agreement to calculations of the electronic structure using the LDA+U scheme. It is shown that the high energy spectra reveal the bulk electronic structure better compared to low energy XPS spectra. The high resolution measurements of the
valence band close to the Fermi
energy indicate the existence of the gap in the minority states for all three alloys.
