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arXiv physics/0112038physics.atm-clusphysics.atom-ph
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钠小团簇的结构和性质

Structure and properties of small sodium clusters

Ilia A. Solov'yov, Andrey V. Solov'yov, Walter Greiner

摘要:

本文采用基于Hartree-Fock近似和密度泛函理论、微扰理论的全电子从头计算方法研究了金属小团簇的结构和性质,并将计算结果与已有的实验数据和其他理论工作的结果进行了比较。我们系统地计算了中性和单电荷钠原子团簇的几何构型、多极矩(偶极和四极)、静态极化率、原子结合能、电离势和振动频率。我们的计算表明了多电子关联在小金属团簇的电子和离子结构形成中的重要作用,为进一步详细研究其动力学性质以及其他原子团簇体系的结构和性质奠定了良好的基础.

英文摘要:

We have investigated structure and properties of small metal clusters using all-electron ab initio theoretical methods based on the Hartree-Fock approximation and density functional theory, perturbation theory and compared results of our calculations with the available experimental data and the results of other theoretical works. We have systematically calculated the optimized geometries of neutral and singly charged sodium clusters having up to 20 atoms, their multipole moments (dipole and quadrupole), static polarizabilities, binding energies per atom, ionization potentials and frequencies of normal vibration modes. Our calculations demonstrate the great role of many-electron correlations in the formation of electronic and ionic structure of small metal clusters and form a good basis for further detailed study of their dynamic properties, as well as structure and properties of other atomic cluster systems.

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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