New insights in low-energy electron-fullerene interactions

30th International Conference on Photonic, Electronic, and Atomic Collisions

Msezane, Alfred^1 ; Felfli, Zineb^1

Department of Physics and CTSPS, Clark Atlanta University, Atlanta

GA

30314, United States^1

关键词: First excited state;    Low energy electron scattering;    Low energy electrons;    Metastable anions;    Polarization interactions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/875/7/062009/pdf
DOI  :  10.1088/1742-6596/875/7/062009

来源: IOP

【 摘 要 】

Synopsis Regge pole calculated low-energy electron scattering total cross sections (TCSs) for ground and first excited states of fullerenes are generally robust; for C20they resemble those of atomic Au. Here we explore the variation of R, the ratio of second to first Ramsauer-Townsend minima of excited states TCSs, from C20through C70. We find that for C20R is close to that for Au (> 1.) while for C24R is about unity. For C70R is less than 0.5 demonstrating strong departure from atomic behavior due to significant polarization interaction in C70; which also induces long-lived metastable anions in C70.