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Probing doubly excited ionic states of N-2(+) via a triple excitation above the N 1s threshold in the N-2 molecule

Feifel, R; Ueda, K; De Fanis, A; Okada, K; Tanimoto, S; Furuta, T; Shindo, H; Kitajima, M; Tanaka, H and Bjorneholm, O, et al. (2003) In Physical Review A (Atomic, Molecular and Optical Physics) 67(3: 032504).
Abstract
Angle-resolved resonant Auger-electron spectroscopy has been carried out on the nitrogen molecule at selected photon energies around 419 eV, where a 1s core electron and two valence electrons are promoted into the lowest unoccupied molecular orbital 1pi(g). Significant enhancement of a specific band, which cannot be disentangled in direct photoionization, is observed at a binding energy of 37.6 eV, with a value of the anisotropy parameter beta much smaller than 2. We assign this new band to the transition to a doubly excited cationic state of N-2, in which two of the excited valence electrons remain in the 1pi(g) orbital, proposing a "double spectator" type decay mechanism. This observation shows how to preferentially probe multiply... (More)
Angle-resolved resonant Auger-electron spectroscopy has been carried out on the nitrogen molecule at selected photon energies around 419 eV, where a 1s core electron and two valence electrons are promoted into the lowest unoccupied molecular orbital 1pi(g). Significant enhancement of a specific band, which cannot be disentangled in direct photoionization, is observed at a binding energy of 37.6 eV, with a value of the anisotropy parameter beta much smaller than 2. We assign this new band to the transition to a doubly excited cationic state of N-2, in which two of the excited valence electrons remain in the 1pi(g) orbital, proposing a "double spectator" type decay mechanism. This observation shows how to preferentially probe multiply excited configurations of cations using multiple resonant excitation. (Less)
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in
Physical Review A (Atomic, Molecular and Optical Physics)
volume
67
issue
3: 032504
publisher
American Physical Society
external identifiers
  • wos:000181965900040
  • scopus:85037220848
ISSN
1050-2947
DOI
10.1103/PhysRevA.67.032504
language
English
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yes
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3d7bfeb9-36dc-42f2-a166-ba9a433f76c3 (old id 313964)
date added to LUP
2007-09-03 07:48:35
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2018-05-29 11:06:42
@article{3d7bfeb9-36dc-42f2-a166-ba9a433f76c3,
  abstract     = {Angle-resolved resonant Auger-electron spectroscopy has been carried out on the nitrogen molecule at selected photon energies around 419 eV, where a 1s core electron and two valence electrons are promoted into the lowest unoccupied molecular orbital 1pi(g). Significant enhancement of a specific band, which cannot be disentangled in direct photoionization, is observed at a binding energy of 37.6 eV, with a value of the anisotropy parameter beta much smaller than 2. We assign this new band to the transition to a doubly excited cationic state of N-2, in which two of the excited valence electrons remain in the 1pi(g) orbital, proposing a "double spectator" type decay mechanism. This observation shows how to preferentially probe multiply excited configurations of cations using multiple resonant excitation.},
  articleno    = {032504},
  author       = {Feifel, R and Ueda, K and De Fanis, A and Okada, K and Tanimoto, S and Furuta, T and Shindo, H and Kitajima, M and Tanaka, H and Bjorneholm, O and Karlsson, L and Svensson, S and Ristinmaa Sörensen, Stacey},
  issn         = {1050-2947},
  language     = {eng},
  number       = {3: 032504},
  publisher    = {American Physical Society},
  series       = {Physical Review A (Atomic, Molecular and Optical Physics)},
  title        = {Probing doubly excited ionic states of N-2(+) via a triple excitation above the N 1s threshold in the N-2 molecule},
  url          = {http://dx.doi.org/10.1103/PhysRevA.67.032504},
  volume       = {67},
  year         = {2003},
}