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Träfflista för sökning "WFRF:(Piancastelli MN) srt2:(2004)"

Sökning: WFRF:(Piancastelli MN) > (2004)

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1.
  • Feifel, R, et al. (författare)
  • A quantitative analysis of the N 1s ->pi* photoabsorption profile in N-2: new spectroscopical constants for the core-excited state
  • 2004
  • Ingår i: Chemical Physics Letters. - : Elsevier BV. - 0009-2614. ; 383:3-4, s. 222-229
  • Tidskriftsartikel (refereegranskat)abstract
    • The N 1s --> pi* photoabsorption profile of N-2 is quantitatively analysed. New spectroscopical constants for the N 1s(-1) pi* core-excited state are determined from NEXAFS spectra and compared to previously published data. The accuracy of the new spectroscopical constants is discussed and error bars are given for the present data analysis. The goodness of the new spectroscopical constants is demonstrated by lifetime vibrational interference (LVI) simulations of the resonant Auger decay from the N 1s(-1) pi* core-excited state to the A(2)Pi(u) singly ionized final state of N-2. These new values give a much better agreement with recently obtained experimental data compared to the previously published ones.
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2.
  • Ristinmaa Sörensen, Stacey, et al. (författare)
  • Application of an atomic relaxation model for the interpretation of O1s to Rydberg excited Auger electron spectra of molecular oxygen
  • 2004
  • Ingår i: Chemical Physics Letters. - : Elsevier BV. - 0009-2614. ; 398:1-3, s. 168-174
  • Tidskriftsartikel (refereegranskat)abstract
    • Resonant and normal Auger electron spectra associated with an O1s initial vacancy of the O-2 molecule have been recorded using photon energies of 541.80, 541.97 and 650 eV. The resonant Auger spectra obtained at 541.80 and 541.97 eV are interpreted as composed essentially of two characteristic parts, one between 10 and 35 eV binding energy reminiscent to direct photoionisation, and another, above 35 eV, associated primarily with spectator decay of the intermediate core-hole state. The spectra above 35 eV owe some similarity to the ordinary Auger electron spectrum recorded at 650 eV, and an interpretation is made in terms of Rydberg series in the cation converging towards the dicationic ionisation limits. The interpretation is based on a relaxation model introduced earlier for atomic resonant Auger spectra. The assignments of the resonant spectra assume that the relevant intermediate neutral states at 541.80 and 541.97 eV governing the Auger decay are essentially the v = 0 and 1 vibrational components of the (O1s) ((4)Sigma(u)(-)) 4psigma Rydberg state. Arguments for this interpretation are given.
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  • Resultat 1-2 av 2
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tidskriftsartikel (2)
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refereegranskat (2)
Författare/redaktör
Karlsson, L (2)
Ristinmaa Sörensen, ... (2)
Feifel, R. (2)
Piancastelli, MN (2)
Tanaka, T. (1)
Tanaka, H. (1)
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Ohrwall, G (1)
Bjorneholm, O (1)
Tchaplyguine, M. (1)
Svensson, S (1)
Andersson, M (1)
de Fanis, A (1)
Ueda, K (1)
Eland, JHD (1)
Kitajima, M (1)
Sankari, R. (1)
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Lunds universitet (2)
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Engelska (2)
Forskningsämne (UKÄ/SCB)
Naturvetenskap (2)
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2004 (2)Ta bort avgränsningen

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