Coincidence study of double electron emission associated with K-shell photoionization of C60
Abstract
The (multiple) photoionization and subsequent fragmentation of the C60 molecule was studied with the synchrotron radiation after removing electrons from the inner K-shell. Our intention was especially focused on the dynamics of the subsequent fragmentation. In addition to ’normal’ (non-coincident) electron and ion time-of-flight spectroscopy, we investigated this topic with the help of an electron–electron-coincidence measurement. Our experiment shows that in these processes Cq+60 ions with charge states up to 3+ and several smaller Cq+60-2m fragments are formed. In addition, the broad peak besides the C(1s) line, usually referred to as the 'plasmon' peak, has been observed.
References
Aksela, S., Nõmmiste, E., Jauhiainen, J., Kukk, E., Karvonen, J., Berry, H.G., Sorensen, S.L. & Aksela, H. 1995. Photofragmentation of C60 Molecules following Resonance Excitation and Ionization near the C 1s Edge. Physical Review Letters, 75(11), pp.2112-2115. Available at: https://doi.org/10.1103/physrevlett.75.2112.
Bernard, J., Martin, S., Chen, L., Cederquist, H., Salmoun, A., & Brédy, R. 2003. A single ion (Ar q+ q =1,3 or C 60 3+ ) in a conic electrode electrostatic trap. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 205, pp.196-200. Available at: https://doi.org/10.1016/s0168-583x(03)00553-6.
Brühwiler, P.A., Maxwell, A.J., Rudolf, P., Gutleben, C.D., Wästberg, B., & Mårtensson, N. 1993. C1s autoionization study of electron hopping rates in solid C60. Physical Review Letters, 71(22), pp.3721-3724. Available at: https://doi.org/10.1103/physrevlett.71.3721.
Hertel, I.V., Steger, H., de Vries, J., Weisser, B., Menzel, C., Kamke, B., & Kamke, W. 1992. Giant plasmon excitation in free C60 and C70 molecules studied by photoionization. Physical Review Letters, 68(6), pp.784-787. Available at: https://doi.org/10.1103/physrevlett.68.784.
Karvonen, J., Nõmmiste, E., Aksela, H., & Aksela, S. 1997. Photoion spectra of C60 molecules at resonance excitation and ionization energies near the C 1s edge. Journal of Chemical Physics, 106(9), pp.3466-3472. Available at: https://doi.org/10.1063/1.473442.
Korica, S., Reinköster, A., & Becker, U. 2018. Strong enhancement of double Auger decay following Plasmon excitation in C60. Vojnotehnički glasnik/Military Technical Courier, 66(3), pp.483-494. Available at: https://doi.org/10.5937/vojtehg66-16269.
Korica, S., Rolles, D., Reinköster, A., Langer, B., Viefhaus, J., Cvejanović, S., & Becker, U. 2005. Partial cross sections and angular distributions of resonant and nonresonant valence photoemission of C60. Physical Review A, 71(1), pp.132031-132035. Available at: https://doi.org/10.1103/physreva.71.013203.
Krätschmer, W., Lamb, L.D., Fostiropoulos, K., & Huffman, D.R. 1990. Solid C60: a new form of carbon. Nature, 347(6291), pp.354-358. Available at: https://doi.org/10.1038/347354a0.
Kroto, H.W., Heath, J.R., O'Brien, S.C., Curl, R.F., & Smalley, R.E. 1985. C60: Buckminsterfullerene. Nature, 318(6042), pp.162-163. Available at: https://doi.org/10.1038/318162a0.
Krummacher, S., Biermann, M., Neeb, M., Liebsch, A., & Eberhardt, W. 1993. Close similarity of the electronic structure and electron correlation in gas-phase and solid C60. Physical Review B, 48(11), pp.8424-8429. Available at: https://doi.org/10.1103/physrevb.48.8424.
Kusmany, H., Fink, J., Mehring, M., & Roth, S. 1993. Electronic Properties of Fullerenes. In Springer Series in Solid-State Sciences. Berlin: Springer. Vol. 177.
LeBrun, T., Berry, H.G., Cheng, S., Dunford, R.W., Esbensen, H., Gemmell, D.S., Kanter, E.P., & Bauer, W. 1994. Ionization and Multifragmentation of C60 by High-Energy, Highly Charged Xe Ions. Physical Review Letters, 72(25), pp.3965-3968. Available at: https://doi.org/10.1103/physrevlett.72.3965.
Leiro, J.A., Heinonen, M.H., Laiho, T., & Batirev, I.G. 2003. Core-level XPS spectra of fullerene, highly oriented pyrolitic graphite, and glassy carbon. Journal of Electron Spectroscopy and Related Phenomena, 128(2-3), pp.205-213. Available at: https://doi.org/10.1016/s0368-2048(02)00284-0.
Lykke, K.R. 1995. Fragmentation of C60: Experimental detection of C, C2, C3, and C4 by xuv postionization. Physical Review A, 52(2), pp.1354-1357. Available at: https://doi.org/10.1103/physreva.52.1354.
Reinköster, A., Siegmann, B., Werner, U., & Lutz, H.O. 2003. Ion-impact induced excitation and fragmentation of C60. Radiation Physics and Chemistry, 68(1-2), pp.263-267. Available at: https://doi.org/10.1016/s0969-806x(03)00295-0.
Scheier, P., Dünser, B., Wörgötter, R., Lezius, M., Robl, R., & Märk, T.D. 1994. Appearance and ionization energies of singly, doubly and triply charged C60 and its fragment ions produced by electron impact ionization. International Journal of Mass Spectrometry and Ion Processes, 138, pp.77-93. Available at: https://doi.org/10.1016/0168-1176(94)04034-6.
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