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The ground state of the Lithium atom in strong magnetic fields

M. V. Ivanov·P. Schmelcher
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Abstract

The ground and some excited states of the Li atom in external uniform magnetic fields are calculated by means of our 2D mesh Hartree-Fock method for field strengths ranging from zero up to 2.35 10^8 T. With increasing field strength the ground state undergoes two transitions involving three different electronic configurations: for weak fields the ground state configuration arises from the field-free 1s^22s configuration, for intermediate fields from the 1s^22p_{-1} configuration and in high fields the 1s2p_{-1}3d_{-2} electronic configuration is responsible for the properties of the atom. The transition field strengths are determined. Calculations on the ground state of the Li+ ion allow us to describe the field-dependent ionization energy of the Li atom. Some general arguments on the ground states of multi-electron atoms in strong magnetic fields are provided.

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M. V. Ivanov, P. Schmelcher. 1998-01-12. The ground state of the Lithium atom in strong magnetic fields. https://doi.org/10.1103/physreva.57.3793

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