X-ray photoemission spectrum, electronic structure, and magnetism of UCu$_2$Si$_2$

J. A. Morkowski; G. Chełkowska; M. Werwiński; A. Szajek; R. Troć; C. Neise

doi:10.1016/j.jallcom.2011.04.026

paper

X-ray photoemission spectrum, electronic structure, and magnetism of UCu $_{2}$ Si $_{2}$

arXiv:2503.20386 · doi:10.1016/j.jallcom.2011.04.026

Abstract

The room temperature X-ray photoemission spectrum of the ferromagnetic compound UCu $_{2}$ Si $_{2}$ (T $_{C}$ = 100 K) was measured using an Al K $_{α}$ source. Related theoretical spectra were computed from densities of electronic states obtained in the local density approximation (LDA), the generalized gradient approximation (GGA), and using the GGA+U method. The calculated spectrum is in a good agreement with the experimental one. The spin polarized calculations based on the GGA+U approach as well as GGA/LSDA with orbital polarization (OP) corrections taken into account provide values of the total magnetic moment in reasonable agreement with the experimental values ranging between 1.6 and 2.0 $μ_{B}$ /U atom.

X-ray photoemission spectrum, electronic structure, and magnetism of UCu2​Si2​

Abstract

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X-ray photoemission spectrum, electronic structure, and magnetism of UCu $_{2}$ Si $_{2}$