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Femtosecond interatomic Coulombic decay in free neon clusters: Large lifetime differences between surface and bulk

Författare:
  • G Ohrwall
  • Maxim Tchaplyguine
  • M Lundwall
  • R Feifel
  • H Bergersen
  • T Rander
  • A Lindblad
  • Joachim Schulz
  • Sergey Peredkov
  • S Barth
  • S Marburger
  • U Hergenhahn
  • S Svensson
  • O Bjorneholm
Publiceringsår: 2004
Språk: Engelska
Publikation/Tidskrift/Serie: Physical Review Letters
Volym: 93
Nummer: 17
Dokumenttyp: Artikel
Förlag: American Physical Society

Sammanfattning

A quantitative determination of 2s vacancy lifetimes in surface and bulk atoms of free Ne clusters has been made. While for free atoms the 2s inner-valence hole has a ps lifetime, it reduces to 6+/-1 fs for cluster bulk atoms. For surface atoms, the lifetime is on average longer than 30 fs. The lifetime estimate was obtained from fits of high-resolution photoelectron spectra of Ne clusters. The shortening of the lifetime is attributed to the coordination dependent interatomic Coulombic decay, which is extremely sensitive to internuclear distances.

Disputation

Nyckelord

  • Physics and Astronomy

Övriga

Published
Yes
  • ISSN: 0031-9007

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