Binding energies of fullerene and complex atomic negative ions

Abstract

Synopsis A robust potential which embeds fully the vital core polarization interaction has been used in the Regge-pole method to explore low-energy electron scattering from C60, Eu and Nb through the total cross sections (TCSs) calculation. From the characteristic dramatically sharp resonances in the TCSs manifesting negative ion formation in these systems, we extracted the binding energies (BEs) for the C60-, Eu- and Nb- anions. Our BE for C60- ground state is in outstanding agreement with the measured electron affinity (EA) of C60 [1]. For anionic Eu- and Nb- our BEs are compared with the measured EAs [2-4].