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

Abstract

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.

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

References in corpus (2)

• Correlation in the transition metal based Heusler compounds Co${}_2$MnSi and Co${}_2$FeSi
• Electronic structure and spectroscopy of the quaternary Heusler alloy Co${}_2$Cr${}_{1-x}$Fe${}_x$Al

Cited by in corpus (4)

• Electron correlations in Co${}_2$Mn${}_{1-x}$Fe${}_x$Si Heusler compounds
• GW study of the half-metallic Heusler compounds Co2MnSi and Co2FeSi
• Combinatorial tuning of electronic structure and thermoelectric properties in Co${}_2$MnAl${}_{1-x}$Si${}_x$ Weyl semimetals
• Magnetic dichroism study on Mn${}_{1.8}$Co${}_{1.2}$Ga thin film using a combination of X-ray absorption and photoemission spectroscopy