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Träfflista för sökning "WFRF:(Saar A.) srt2:(1993-1994)"

Sökning: WFRF:(Saar A.) > (1993-1994)

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1.
  • Elango, M., et al. (författare)
  • Autoionization phenomena involving the 2p53d configuration of argonlike ions in ionic solids
  • 1993
  • Ingår i: Physical Review B (Condensed Matter). - 0163-1829. ; 47:18, s. 11736-11748
  • Tidskriftsartikel (refereegranskat)abstract
    • The photon-induced Auger and photoelectron spectra of the argonlike ions Cl- (in NaCl), K+ (in KCl), Ca2+ (in CaCl2 and CaF2), and Sc3+ (in Sc2O3) have been measured in the vicinity of the L23 absorption edges of these ions. It is shown that at the 2p6→2p53d(4s) resonance a spectator structure appears in the L23M23M23 Auger spectra, which shifts to higher kinetic energies with increasing photon energy. This structure originates from the 3p-23d(4s) final configuration arising as a product of the Auger resonant-inelastic-scattering process of the incident photons. We demonstrate that the peculiarities of this process and the role of the collapsing 3d electron in it can be largely understood in terms of an atomic treatment. The solid-state effects, caused by the crystal field and the lattice polarization, may play an additional role.
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2.
  • Ruus, R., et al. (författare)
  • M4,5N4,5N4,5 Auger decay spectra of the resonantly excited 3d94f configuration of xenonlike ions in solids
  • 1994
  • Ingår i: Physical Review B (Condensed Matter). - 0163-1829. ; 49:21, s. 14836-14844
  • Tidskriftsartikel (refereegranskat)abstract
    • The synchrotron-radiation-induced Auger and photoelectron spectra of the xenonlike ions I- (in CsI), Cs+ (in CsI), Ba2+ (in BaF2), and La3+ (in LaF3) have been measured in the vicinity of the M4,5 absorption edges of these ions. It is shown that the spectra of La and Ba measured at 3d10→3d94f resonances exhibit a very intense 4f-spectator structure which changes its energy and intensity with the energy of the exciting photons. Calculation of the Auger decay of the 3d-14f configuration shows that this structure is due to transitions to the 4d-24f+4p-1 final ionic configuration, the high-energy part of which overlaps the 4d-2 continuum. In the case of Ba this structure coexists with the normal Auger structure which appears as a result of the M4M5N6,7 Coster-Kronig transitions. The spectra of I- contain only the normal M4,5N4,5N4,5 Auger structure related to the 3d-1→4d-2 transitions. The spectra of Cs+ are similar to those of I- with a small admixture of the 4f-spectator-like structure.
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  • Resultat 1-2 av 2
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tidskriftsartikel (2)
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refereegranskat (2)
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Nommiste, E (2)
Nyholm, R. (2)
Saar, A. (2)
Andersen, J. N. (2)
Van Acker, J. F. (2)
Martinson, I. (2)
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Elango, M. (2)
Kikas, A. (2)
Ruus, R. (2)
Ausmees, A (1)
Qvarford, M. (1)
Maiste, A (1)
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Lunds universitet (2)
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Engelska (2)

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