Statistical fragmentation of small neutral carbon clusters

Journal Article · Tue Mar 01 00:00:00 EST 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.71.033202· OSTI ID:20650430

Diaz-Tendero, S; Alcami, M; Martin, F ^[1]; Hervieux, P -A ^[2]

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1. Departamento de Quimica, C-9, Universidad Autonoma de Madrid, 28049 (Spain)
2. Institut de Physique et Chimie des Materiaux de Strasbourg, GONLO, 23 rue du Loess, 67034 Strasbourg (France)

We present a statistical fragmentation study of the C{sub 5}, C{sub 7}, and C{sub 9} carbon clusters using the Metropolis Monte Carlo and Weisskopf methods. We show that inclusion of several isomeric forms as well as rotational effects is essential to reproduce the experimental observations. We have found that, for cluster excitation energies around 10 eV, several fragmentation channels are efficiently populated, but the dominant one always corresponds to C{sub n-3}/C{sub 3}. For high enough excitation energies, we observe first-order phase transitions corresponding to a complete breakup of the cluster.

• OSTI ID: 20650430
• Journal Information: Physical Review. A, Vol. 71, Issue 3; Other Information: DOI: 10.1103/PhysRevA.71.033202; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMIC CLUSTERS
CARBON
EV RANGE
EXCITATION
EXCITED STATES
FRAGMENTATION
INCLUSIONS
MONTE CARLO METHOD
PHASE TRANSFORMATIONS