Abstract
A measure of the Fe 3d partial density of states (DOS) in the valence bands of ${\mathrm{Cd}}_{0.89}$${\mathrm{Fe}}_{0.11}$Se single-phase single crystals has been obtained using synchrotron-radiation photoemission. Based on an analysis of the Fe 3d DOS spectrum in terms of a configuration-interaction calculation on a ${\mathrm{Fe}}^{2+}$(${\mathrm{Se}}^{2\mathrm{\ensuremath{-}}}$${)}_{4}$ model cluster, we find that the spectral intensities in the top 6 eV are predominantly due to transitions to ${\mathit{d}}^{6}$L final-state configuration, where L represents a ligand hole. On the other hand, those at 7--15 eV originate mainly from transitions to the ${\mathit{d}}^{5}$ configuration. The model calculation provides the Fe 3d Coulomb correlation energy of 4.5 eV.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
