Nonthermal fragmentation of C60

Details Nonthermal fragmentation of C60 Nonthermal fragmentation of C60

2001-04-02

arxiv.org/abs/cond-mat/0104036v1

Chem. Phys. Lett. 352, 154 (2002)

Physics

Condensed Matter

Materials Science

5 pages, 4 figures, submitted to Chem. Phys. Lett

Scientific paper

10.1016/S0009-2614(01)01453-1

A theoretical study of the subpicosecond fragmentation of C60 clusters in response to ultrafast laser pulses is presented. We simulate the laser excitation and the consequent nonequilibrium relaxation dynamics of the electronic and nuclear degrees of freedom. The first stages of the nonequilibrium dynamics are dominated by a coherent breathing mode followed by the cold ejection of single C atoms, in contrast to the dimer emission which characterizes the thermal relaxation. We also determine the nonequilibrium damage thresholds as a function of the pulse duration.

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