High energy, high resolution photoelectron spectroscopy of Co2Mn(1-x)Fe(x)Si

Details High energy, high resolution photoelectron spectroscopy of Co2Mn(1-x)Fe(x)Si High energy, high resolution photoelectron spectroscopy of Co2Mn(1-x)Fe(x)Si

2006-11-05

arxiv.org/abs/cond-mat/0611120v1

J. Phys. D: Appl. Phys. 40 No 6 (21 March 2007) 1576-1581

Physics

Condensed Matter

Materials Science

14 pages, 5 figures, submitted to J. Phys. D: Appl. Phys

Scientific paper

10.1088/0022-3727/40/6/S11

This work reports on high resolution photoelectron spectroscopy for the valence band of Co2Mn(1-x)Fe(x)Si (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.

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