Electronic Structure and X-ray Magnetic Circular Dichroism in A-site ordered perovskite CaCo$_{3}$V$_{4}$O$_{12}$
D. V. Mazur$^{1}$, L. V. Bekenov$^{1}$, B. Kh. Zhuravlov$^{1}$, S. V. Mokliak$^{1}$, Yu. M. Kucherenko$^{1}$, V. M. Antonov$^{1,2}$
$^{1}$Институт металлофизики им. Г. В. Курдюмова НАН Украины, бульв. Академика Вернадского, 36, 03142 Киев, Украина
$^{2}$Max Planck Institute for Solid State Research, 1 Heisenbergstr Str, D-70569 Stuttgart, Germany
Получена: 01.09.2023; окончательный вариант - 22.09.2023. Скачать: PDF
We are studied the electronic and magnetic properties of the A-site ordered perovskite CaCo$_{3}$V$_{4}$O$_{12}$ within the density-functional theory using the generalized gradient approximation (GGA) with the consideration of strong Coulomb correlations (GGA + $U$) in the framework of the fully relativistic spin-polarized Dirac linear muffin-tin orbital method of band-structure calculation. The x-ray absorption spectra and x-ray magnetic circular dichroism at the Ca, Co, and V $K$-edges are investigated theoretically. The effect of the electric quadrupole $E_{2}$ transitions and magnetic dipole $M_{1}$ transitions are analysed. The calculated results are in good agreement with experimental data.
Ключевые слова: electronic band structure, magnetic moment, GGA, x-ray absorption spectra, x-ray magnetic circular dichroism, double perovskites.
URL: https://mfint.imp.kiev.ua/ru/abstract/v45/i09/1067.html
PACS: 71.15.Mb, 71.20.Ps, 75.50.Ee, 78.20.Fm, 78.20.Ls, 78.70.Dm, 81.05.Zx