Перегляд за Автор "Sofronkov, A. S."

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    Relativistic and correlation effects in Auger spectroscopy of atoms and solids
    (Одеський національний університет імені І. І. Мечникова, 2022) Sofronkov, A. S.; Tyurin, Oleksandr V.; Софронков, О. Н.; Тюрін, Олександр Валентинович
    It is presented an advanced, consistent theoretical scheme for determination of the energy and spectral characteristics of the Auger process (decay, transition) in atomic systems and solids with correct accounting for the relativistic and exchange-correlation (relaxation) nuclear effects. As the basic approach to calculating the Auger spectra of solids there is used a consistent theoretical method, based on the S-matrix formalism by Gell-Mann and Low and relativistic many-body perturbation theory formalism. Universal relativistic Dirac-Hartree-Slater method is taken as a theoretical method for calculating the electronic wave functions and energies of the states and transitions. The advanced data on the Auger electron energy for some solids (Ge,Ag) with accounting for the relativistic and nuclear finite size effects are listed.