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

Abstract

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.

Authors:
 [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)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); German Research Foundation (DFG)
OSTI Identifier:
1604639
Alternate Identifier(s):
OSTI ID: 1358467
Grant/Contract Number:  
AC02-05CH11231; FG02-03ER15424; AC03-76SF0098; 1068/10; Mu 1068/22
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 95; Journal Issue: 5; Journal ID: ISSN 2469-9926
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; single- and few-photon ionization & excitation

Citation Formats

Thomas, C. M., Baral, K. K., Aryal, N. B., Habibi, M., Esteves-Macaluso, D. A., Kilcoyne, A. L. D., Aguilar, A., Schlachter, A. S., Schippers, S., Müller, A., and Phaneuf, R. A. Cross sections for photoionization of fullerene molecular ions Cn+ with n = 40, 50, 70, 76, 78, and 84. United States: N. p., 2017. Web. doi:10.1103/PhysRevA.95.053412.
Thomas, C. M., Baral, K. K., Aryal, N. B., Habibi, M., Esteves-Macaluso, D. A., Kilcoyne, A. L. D., Aguilar, A., Schlachter, A. S., Schippers, S., Müller, A., & Phaneuf, R. A. Cross sections for photoionization of fullerene molecular ions Cn+ with n = 40, 50, 70, 76, 78, and 84. United States. doi:10.1103/PhysRevA.95.053412.
Thomas, C. M., Baral, K. K., Aryal, N. B., Habibi, M., Esteves-Macaluso, D. A., Kilcoyne, A. L. D., Aguilar, A., Schlachter, A. S., Schippers, S., Müller, A., and Phaneuf, R. A. Mon . "Cross sections for photoionization of fullerene molecular ions Cn+ with n = 40, 50, 70, 76, 78, and 84". United States. doi:10.1103/PhysRevA.95.053412. https://www.osti.gov/servlets/purl/1604639.
@article{osti_1604639,
title = {Cross sections for photoionization of fullerene molecular ions Cn+ with n = 40, 50, 70, 76, 78, and 84},
author = {Thomas, C. M. and Baral, K. K. and Aryal, N. B. and Habibi, M. and Esteves-Macaluso, D. A. and Kilcoyne, A. L. D. and Aguilar, A. and Schlachter, A. S. and Schippers, S. and Müller, A. and Phaneuf, R. A.},
abstractNote = {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.},
doi = {10.1103/PhysRevA.95.053412},
journal = {Physical Review A},
number = 5,
volume = 95,
place = {United States},
year = {2017},
month = {5}
}

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    Works referencing / citing this record:

    Photoionization and photofragmentation of singly charged positive and negative Sc 3 N @ C 80 endohedral fullerene ions
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