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Title: Cross sections for photoionization of fullerene molecular ions C n + with n = 40, 50, 70, 76, 78, and 84

Journal Article · · Physical Review A
 [1];  [1];  [1];  [1];  [2];  [3];  [3];  [3];  [4];  [4];  [1]
  1. Univ. of Nevada, Reno, NV (United States)
  2. Univ. of Nevada, Reno, NV (United States); Univ. of Montana, Missoula, MT (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  4. Justus-Liebig-Univ., Giessen (Germany)

Absolute cross-section measurements are reported for single photoionization of Cn+ fullerene molecular ions (n=40, 50, 70, 76, 78, and 84) in the photon-energy range 18-70 eV. The experiments were performed by merging a mass and charge selected beam of Cn+ molecular ions with a beam of monochromatized synchrotron radiation and measuring the yield of Cn2+ product ions as a function of the photon energy. Oscillator strengths determined by integrating the measured cross sections over this energy range exhibit a linear dependence on n. The cross sections are parametrized by fits to three Lorentzian functions to represent plasmon excitations and a linear function for direct ionization. Finally, the highest-energy resonance in the data near 46 eV is similar to that previously observed in single photoionization of C60 and may be attributable to a harmonic of the dominant surface-plasmon resonance near 23 eV.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); German Research Foundation (DFG)
Grant/Contract Number:
AC02-05CH11231; FG02-03ER15424; AC03-76SF0098; 1068/10; Mu 1068/22
OSTI ID:
1604639
Alternate ID(s):
OSTI ID: 1358467
Journal Information:
Physical Review A, Vol. 95, Issue 5; ISSN 2469-9926
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

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Cited By (3)

Photoionization and photofragmentation of singly charged positive and negative Sc 3 N @ C 80 endohedral fullerene ions journal June 2019
Molecular-size effects on diffraction resonances in positronium formation from fullerenes journal October 2019
Photoionization and photofragmentation of singly charged positive and negative Sc$_3$N@C$_{80}$ endohedral fullerene ions text January 2019

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