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Strong Participator Channels in the Non-Radiative Resonant Decay of B 1s Excitation in B2O3

In English

Författare

  • Alexei Preobrajenski
  • A. S. Vinogradov
  • E. Kleimenov
  • A. Knop-Gericke
  • S. A. Krasnikov
  • R. Szargan
  • Nils Mårtensson

Summary, in English

We observe and analyze a considerable enhancement of photoelectron intensity of the valence band features in solid B2O3 upon tuning the photon energy across the B 1s → π*2pz resonance. This enhancement is an evidence of the strong 2p electron correlations in pre-edge photoionization dynamics in boron oxide. Such strength of the correlation is unusual for a solid, whose valence band is composed of only s and p electrons. We assign these effects to the considerable spatial localization of the highest occupied and lowest unoccupied electronic states of boron oxide on the BO33- quasimolecular anion, as well as to the strong 2p electron coupling between them. Solid state effects in the electronic structure and B 1s → π* decay dynamics are found to be minor, while molecular effects of the BO33- fragment are dominating.

Publiceringsår

2005

Språk

Engelska

Sidor

1071-1073

Publikation/Tidskrift/Serie

Physica Scripta

Volym

T115

Dokumenttyp

Artikel i tidskrift

Förlag

IOP Publishing

Ämne

  • Physical Sciences
  • Natural Sciences

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0031-8949