2024-03-28T10:42:32Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/25192021-07-06T08:33:31Zcom_10324_1159com_10324_931com_10324_894col_10324_1310
Garcias, Francesca
4c96bf4b-bb08-4bed-b602-efd6606a67fa
500
Alonso Martín, Julio Alfonso
e271c5fb2bacf6c4
500
0000-0002-8604-8608
López Rodríguez, José Manuel
2f02e22b6bd3347e
500
0000-0003-0995-0558
Barranco, Manuel
060f5c8f-adad-4b87-a5f5-b4464f176674
500
2013-03-18T23:49:32Z
2013-03-18T23:49:32Z
1991
Physical Review B, v. 43, n. 12, (1991), p. 9459-9466
http://uvadoc.uva.es/handle/10324/2519
10.1103/PhysRevB.43.9459
9459
12
9466
Physical Review B
43
Producción Científica
The barrier height for the most asymmetric fission decay of doubly charged sodium clusters
(Na_N^2+) into singly ionized fragments has been computed with use of density-functional theory and
the jellium model. We have found that the barrier is sizable for large or intermediate-size clusters,
but vanishes for N<=9. We have also computed the energy DeltaH_e, needed to evaporate a neutral
monomer from Na_N ^2+. For N<=40, the barrier height is smaller than DeltaH_e and emission of a Na^+
ion is the preferred decay channel of hot Na_N^2+ clusters. On the other hand, the barrier height is
larger than DeltaH_e, for N>40 and, in this case, monomer evaporation becomes competitive. The critical
cluster size, N_c=40, for the transition from one decay mode to the other is in reasonable agreement
with the experimental result. Our calculations suggest that the mechanism for neutralmonomer
evaporation is different from the one currently assumed.
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The American Physical Society
info:eu-repo/semantics/restrictedAccess
© Todos los derechos reservados
Física nuclear
Coulomb barriers in the dissociation of doubly charged clusters
info:eu-repo/semantics/article
http://link.aps.org/doi/10.1103/PhysRevB.43.9459
SI
ORIGINAL
PhysRevB.43.9459.pdf
PhysRevB.43.9459.pdf
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386503
https://uvadoc.uva.es/bitstream/10324/2519/1/PhysRevB.43.9459.pdf
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LICENSE
license.txt
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4250
https://uvadoc.uva.es/bitstream/10324/2519/2/license.txt
909e634ba52becf192e4e9b4bcde7863
MD5
2
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oai:uvadoc.uva.es:10324/2519
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