Spheroidal cap configurations of atomic clusters on planar surfaces |
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| Authors: | R A Gherghescu D N Poenaru A V Solov’yov and W Greiner |
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| Institution: | (1) Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195, Japan; |
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| Abstract: | Deposited atomic cluster configurations are investigated under the
hypothesis of spheroidal cap shapes being a stable geometry. The
macroscopic-microscopic method is employed to calculate the deformation
energy. A new specialized single-particle model is developed in order to
account for the quantum effects, and the liquid-drop approach is used to
calculate the macroscopic part of the energy. The minima within the total
deformation energy are interpreted as equilibrium states of atomic clusters
on surfaces. Calculations have been performed for the metallic clusters of
Na with atom numbers N = 20, 70 and 200. |
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