Observation of correlation effects in zero kinetic energy electron spectra near the N1s and C1s thresholds in N/sub 2/, CO, C/sub 6/H/sub 6/, and C/sub 2/H/sub 4/

Journal Article · Tue Nov 15 00:00:00 EST 1988 · J. Chem. Phys.; (United States)

OSTI ID:6763857

Medhurst, L J; Ferrett, T A; Heimann, P A; Lindle, D W; Liu, S H; Shirley, D A

Zero kinetic energy (ZKE) spectra of N/sub 2/, CO, C/sub 2/H/sub 4/, and C/sub 6/H/sub 6/ were taken across the N1s (N/sub 2/) and C1s ionization thresholds. Discrete resonances at subthreshold photon energies were observed and were found to become more intense as threshold is approached relative to the same peaks in absorption spectra. For N/sub 2/ the satellite/main line branching ratios at threshold are: 11(1)% for the 419.7(1) eV binding energy satellite, and 2.3(1.0)% for the 426.5(1) eV binding energy satellite. For CO, the branching ratio for the 304.6(1) eV binding energy satellite is 15(2)% at its threshold. Branching ratios at threshold are also determined for the satellites of C/sub 6/H/sub 6/ and C/sub 2/H/sub 4/. Decay characteristics and assignments of the continuum features of C/sub 6/H/sub 6/ and C/sub 2/H/sub 4/ are also discussed.

• Research Organization: Department of Chemistry, University of California and Materials and Chemicals Sciences Division, Lawrence Berkeley Laboratory, Berkeley, California 94720
• OSTI ID: 6763857
• Journal Information: J. Chem. Phys.; (United States), Vol. 89:10
• Country of Publication: United States
• Language: English

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74 ATOMIC AND MOLECULAR PHYSICS
37 INORGANIC
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ETHYLENE
NITROGEN
ABSORPTION SPECTRA
BRANCHING RATIO
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