التفاصيل البيبلوغرافية
| العنوان: |
The effect of ionization on the global minima of small and medium sized silicon and magnesium clusters. |
| المؤلفون: |
De, Sandip, Ghasemi, S. Alireza, Willand, Alexander, Genovese, Luigi, Kanhere, Dilip, Goedecker, Stefan |
| المصدر: |
Journal of Chemical Physics; 3/28/2011, Vol. 134 Issue 12, p124302, 7p, 7 Diagrams |
| مصطلحات موضوعية: |
METAL clusters, IONIZATION (Atomic physics), MAGNESIUM, SILICON, EXCITED state chemistry, DENSITY functionals, POTENTIAL energy surfaces, GEOMETRIC analysis, ENERGY levels (Quantum mechanics) |
| مستخلص: |
We re-examine the question of whether the geometrical ground state of neutral and ionized clusters are identical. Using a well defined criterion for being 'identical' together, the extensive sampling methods on a potential energy surface calculated by density functional theory, we show that the ground states are in general different. This behavior is to be expected whenever there are metastable configurations which are close in energy to the ground state, but it disagrees with previous studies. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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