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arXiv physics/9801014physics.atom-ph
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强磁场中锂原子的基态

The ground state of the Lithium atom in strong magnetic fields

M. V. Ivanov, P. Schmelcher

摘要:

本文用二维网格Hartree-Fock方法计算了Li原子在外加均匀磁场中的基态和部分激发态,场强范围从0到2.35 × 10 ^8 T.随着场强的增加,基态经历了两次跃迁,涉及三种不同的电子组态:对于弱场,基态组态由无场的1s^22组态产生;对于中间场,基态组态由1s^22 p_{-1}组态产生;在高场,1 s2 p_{-1} 3 d_{-2}电子组态决定原子的性质。确定了过渡场强。通过对Li+离子基态的计算,我们可以描述Li原子的电离能随场的变化。给出了强磁场中多电子原子基态的一般性讨论。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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