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Photon Energy Dependent Valence Band Response of Metallic Nanoparticles

Författare

Summary, in English

We show that the valence band response to photon impact in metallic nanoparticles is highly energy dependent. This is seen as drastic variations of cross sections in valence photoionization of free and initially charge-neutral nanosized metal clusters. The effect is demonstrated in a combined experimental and theoretical study of Rb clusters. The experimental findings are interpreted theoretically using a jellium model and superatom description. The variations are attributed to the changing overlap with the photon energy between the wave functions of diffuse delocalized valence electrons and continuum electrons producing a series of minima in the cross section.

Publiceringsår

2011

Språk

Engelska

Publikation/Tidskrift/Serie

Physical Review Letters

Volym

107

Issue

18

Dokumenttyp

Artikel i tidskrift

Förlag

American Physical Society

Ämne

  • Physical Sciences
  • Natural Sciences

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1079-7114