Thermal Quenching of Electronic Shells and Channel Competition in Cluster Fission
Authors:
- 8 October 2002
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 89 (17) , 173403
Abstract
Experimental and theoretical studies of fission of doubly charged Li, Na, and K clusters in the low-fissility regime reveal the strong influence of electronic shell effects on the fission products. The electronic entropy controls the quenching of the shell effects and the competition between magic-fragment channels, leading to a transition from favored channels of higher mass symmetry to the asymmetric channel involving the trimer cation at elevated temperatures.Keywords
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This publication has 13 references indexed in Scilit:
- Comment on “Density functional theory study of some structural and energetic properties of small lithium clusters” [J. Chem. Phys. 105, 9933 (1996)]The Journal of Chemical Physics, 1997
- Electronic Entropy, Shell Structure, and Size-Evolutionary Patterns of Metal ClustersPhysical Review Letters, 1997
- Barriers and Deformation in Fission of Charged Metal ClustersThe Journal of Physical Chemistry, 1995
- Electronic shell effects in triaxially deformed metal clusters: A systematic interpretation of experimental observationsPhysical Review B, 1995
- Dissociation pathways and binding energies of lithium clusters from evaporation experimentsThe Journal of Chemical Physics, 1994
- Dynamics and energy release in fission of small doubly charged clustersPhysical Review Letters, 1994
- Shell-correction method for calculating the binding energy of metal clusters: Application to multiply charged anionsPhysical Review B, 1993
- Metal-cluster fission and the liquid-drop modelPhysical Review A, 1992
- Patterns and barriers for fission of charged small metal clustersPhysical Review Letters, 1991
- Cu cluster shell structure at elevated temperaturesPhysical Review Letters, 1991