The threshold displacement energy of buckminsterfullerene C-60 and formation of the endohedral defect fullerene He@C-59
MH Stockett and M Wolf and M Gatchell and HT Schmidt and H Zettergren and H Cederquist, CARBON, 139, 906-912 (2018).
We have measured the threshold center-of-mass kinetic energy for knocking out a single carbon atom from C-60(-) in collisions with He. Combining this experimental result with classical molecular dynamics simulations, we determine a semi-empirical value of 24.1+0.5 eV for the threshold displacement energy, the energy needed to remove a single carbon atom from the C-60 cage. We report the first observation of an endohedral complex with an odd number of carbon atoms, He@C-59(-), and discuss its formation and decay mechanisms. (C) 2018 Elsevier Ltd. All rights reserved.
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