Electron-energy-loss spectroscopy of the C60 molecule

TL;DR

This paper presents a theoretical analysis of electron-energy-loss spectroscopy (EELS) on C60 molecules using a simple two-fluid model, successfully matching experimental data and providing insights into electron collective behavior in fullerenes.

Contribution

It introduces a simple two-fluid model for EELS in C60, demonstrating its effectiveness in reproducing experimental spectra and analyzing electron collective phenomena.

Findings

Calculated EELS peak intensities agree with experiments

The two-fluid model effectively describes plasma oscillations in C60

Model provides a useful tool for studying electron behavior in fullerenes

Abstract

In this work we present a theoretical study of EELS (electron-energy-loss spectroscopy) experiments on the ${\rm C}_{60}$ molecule. Our treatment of the problem is based on the simple two-fluid model originally proposed for the description of plasma oscillations in graphite and fullerenes (see Refs.\cite{14,15,16}). It is shown that in spite of the simplicity of the model the calculated intensities of the EELS peaks are in good agreement with experimental data which may indicate that the model can be used as a simple and effective tool for the investigation of the collective behaviour of electrons in fullerene systems.