title: Electron attachment to higher fullerenes and to Sc3N@C80.
abstract: We report on attachment of free electrons to fullerenes C(n) (n = 60, 70, 76, 78, 80, 82, 84, 86) and to Sc(3)N@C(80). The attachment cross sections exhibit a strong resonance at 0 eV for all species. The overall shape of the anion yield versus electron energy is quite similar for the higher fullerenes, with a minimum around 1 eV and a maximum which gradually shifts from 6 eV for C(60) to approximately 4 eV for large n. The endohedral Sc(3)N@C(80) exhibits a particularly shallow minimum and a maximum below 4 eV. We model autoionization of the anions with due consideration of the internal energy distributions. The relatively low electron affinity of Sc(3)N@C(80) is reflected in its reduced ion yield at higher attachment energies.
authors.affiliation: Institut für Ionenphysik, Leopold Franzens Universität Innsbruck, Technikerstrasse 25, A-6020 Innsbruck, Austria.
authors.forename: Sylwia
authors.initials: S
authors.lastname: Ptasińska
authors.forename: Olof
authors.initials: O
authors.lastname: Echt
authors.forename: Stephan
authors.initials: S
authors.lastname: Denifl
authors.forename: Michal
authors.initials: M
authors.lastname: Stano
authors.forename: Philipp
authors.initials: P
authors.lastname: Sulzer
authors.forename: Fabio
authors.initials: F
authors.lastname: Zappa
authors.forename: Aleksandar
authors.initials: A
authors.lastname: Stamatovic
authors.forename: Paul
authors.initials: P
authors.lastname: Scheier
authors.forename: Tilmann D
authors.initials: TD
authors.lastname: Märk