Excitation and relaxation in atom-cluster collisions

Details Excitation and relaxation in atom-cluster collisions Excitation and relaxation in atom-cluster collisions

1997-12-05

arxiv.org/abs/physics/9712012v1

Phys. Rev. Lett. 80 (15), 3213-3216 (1998)

Physics

Atomic and Molecular Clusters

RevTeX (4 pages, 4 figures included with epsf)

Scientific paper

10.1103/PhysRevLett.80.3213

Electronic and vibrational degrees of freedom in atom-cluster collisions are treated simultaneously and self-consistently by combining time-dependent density functional theory with classical molecular dynamics. The gradual change of the excitation mechanisms (electronic and vibrational) as well as the related relaxation phenomena (phase transitions and fragmentation) are studied in a common framework as a function of the impact energy (eV...MeV). Cluster "transparency" characterized by practically undisturbed atom-cluster penetration is predicted to be an important reaction mechanism within a particular window of impact energies.

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