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Studies of Er ionization energy

G. Gaigalas·Z. Rudzikas·T. Zalandauskas
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Abstract

This work is aimed at the multiconfigurational Hartree-Fock calculations of the Er ionization energy. Authors have used the ATSP MCHF version in which there are new codes for calculation of spin-angular parts written on the basis of the methodology Gaigalas, Rudzikas and Froese Fischer, based on the second quantization in coupled tensorial form, the angular momentum theory in 3 spaces (orbital, spin and quasispin) and graphical technique of spin-angular ntegrations. They allow the study of configurations with open f-shells without any restrictions and lead to fairly accurate values of spectroscopic data.

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G. Gaigalas, Z. Rudzikas, T. Zalandauskas. 2004-05-12. Studies of Er ionization energy. https://arxiv.org/abs/physics/0405054

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