Decay processes and radiative cooling of small anionic copper clusters

Christian Breitenfeldt, Klaus Blaum, Michael W. Froese, Sebastian George, Gregorio Guzmán-Ramírez, Michael Lange, Sebastian Menk, Lutz Schweikhard, and Andreas Wolf
Phys. Rev. A 94, 033407 – Published 7 September 2016

Abstract

The decay of copper clusters Cun with size n=47, 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.

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  • Received 27 June 2016
  • Revised 28 July 2016

DOI:https://doi.org/10.1103/PhysRevA.94.033407

©2016 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Christian Breitenfeldt1,2, Klaus Blaum1, Michael W. Froese1, Sebastian George1, Gregorio Guzmán-Ramírez3, Michael Lange1, Sebastian Menk1, Lutz Schweikhard2, and Andreas Wolf1

  • 1Max-Planck-Institut für Kernphysik, D-69029 Heidelberg, Germany
  • 2Institut für Physik, Ernst-Moritz-Arndt-Universität, D-17487 Greifswald, Germany
  • 3Departamento de Ingenierías, Centro Universitario de Tonalá, Universidad de Guadalajara, Jal. 48525, Mexico

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Issue

Vol. 94, Iss. 3 — September 2016

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