Structure and properties of small sodium clusters

Details Structure and properties of small sodium clusters Structure and properties of small sodium clusters

2001-12-13

arxiv.org/abs/physics/0112038v2

Physics

Atomic and Molecular Clusters

47 pages, 16 figures

Scientific paper

10.1103/PhysRevA.65.053203

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.

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