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Decay processes and radiative cooling of small anionic copper clusters

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Breitenfeldt,  Christian
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Institut fuer Physik, Ernst-Moritz-Arndt-Universitaet, D-17487 Greifswald, Germany;

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Blaum,  Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Froese,  Michael Wayne
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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George,  Sebastian
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

Lange,  Michael
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Menk,  Sebastian
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Wolf,  Andreas
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Citation

Breitenfeldt, C., Blaum, K., Froese, M. W., George, S., Guzán-Ramírez, G., Lange, M., et al. (2016). Decay processes and radiative cooling of small anionic copper clusters. Physical Review A, 94(03): 033407. doi:10.1103/PhysRevA.94.033407.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002B-5563-1
Abstract
The decay of copper clusters Cun with size n=4−7, produced in a metal ion sputter source, was studied in an electrostatic ion-beam trap. The neutral products after electron emission and fragmentation were monitored for ion storage times of up to a second. The observations indicated the presence of radiative cooling. The energy distributions of the remaining clusters were probed by laser irradiation up to several further seconds of storage time. This defined excitation lead to photoinduced decay signals which, again, showed signs of radiative cooling for Cu6,7, not, however, for Cu4,5.