The threshold displacement energy of buckminsterfullerene C${}_{60}$ and formation of the endohedral defect fullerene He@C${}_{59}$

Abstract

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$\pm$0.5~eV for the threshold displacement energy, the energy needed to remove a single carbon atom from the C${}_{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.

References in corpus (5)

• An accurate measurement of electron beam induced displacement cross sections for single-layer graphene
• Polycyclic aromatic hydrocarbon processing in interstellar shocks
• Threshold Energies for Single Carbon Knockout from Polycyclic Aromatic Hydrocarbons
• Atomic structure and energetics of large vacancies in graphene
• DESIREE electrospray ion source test bench and setup for Collision Induced Dissociation experiments

Cited by in corpus (1)

• Stability of C${}_{59}$ Knockout Fragments from Femtoseconds to Infinity