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Symmetric and asymmetric fission of charged sodium clusters |
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| Authors: | F. Garcias J. A. Alonso J. M. López M. Barranco J. Németh |
| Affiliation: | 1. Departament de Física, Universitat de les Illes Balears, E-07071, Palma de Mallorca, Spain 2. Departament de Física Teórica, Universidad de Valladolid, E-47011, Valladolid, Spain 3. Departament ECM, Facultat de Física, Diagonal, 647, E-08028, Barcelona, Spain 4. Institute of Theoretical Physics, E?tv?s University, H-1088, Budapest, Hungary |
| Abstract: | A deformed-jellium model is used to calculate the fission barrier height of Na 24 2+ → Na 21 + +Na 3 + and Na 42 2+ → 2Na 21 + within the Kohn—Sham Density Functional Theory (i.e., including shell effects). Although the shape of the barrier obviously depends on the parametrization of the fission path, we have found that the barrier maximum corresponds to a configuration in which the emerging fragments are already formed and rather well apart. The two examples chosen serve to illustrate the influence of the electronic shell effects. |
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