Photoabsorption of atoms insideC60

Abstract

The photoabsorption spectrum of the C«molecule and those of Xe and Ba atoms inside the C6o molecule are calculated using a jelliumlike model for the confining cage. The dynamic electronic response to an external electric field is obtained through time-dependent density-functional theory. The photoabsorption cross section for C6o

Interplay of the volume and surface plasmons in the electron energy loss spectra of C60

“…We use a simple but physically reasonable model [22,23,24,25,26] which treats the fullerene as a spherical shell of a finite width, ∆R = R 2 − R 1 (where R 1,2 are the inner and the outer radii of the molecule, respectively). Interaction with an incident electron leads to the variation of the volume electron density, occurring inside the shell, and of the surface electron densities at the inner and the outer surfaces of the shell.…”

Experimental determination of the Compton profile of C60 through binary encounter electron spectroscopy

“…In this work, experimental Compton profiles of C 60 were determined using the novel approach of studying the production of binary encounter electrons produced in high energy ion-C 60 collisions. These Compton profiles were then compared with those generated from effective one-electron wave functions 4 for C 60 as well as with the Compton profiles of graphite, diamond and atomic carbon.…”

“…Previously, this model has been shown to describe well the static polarizability and the photoabsorbtion of the C 60 molecule. 4 We have made tests also by using a model ͑see e.g. Ref.…”

“…In order to reproduce the electronic properties, such as the widths of the occupied spectra of the and states and the ionization potential, it has been found necessary to introduce an adjustable potential shift inside the shell of the positive charge. 4 The electron density is calculated self-consistently using the Kohn-Sham method of the density functional theory. Previously, this model has been shown to describe well the static polarizability and the photoabsorbtion of the C 60 molecule.…”

Quantum description of the optical response of charged monolayer–thick metallic patch nanoantennas

“…1 together with the different types of plasmon excitation considered. The nanodisk is described within the jellium metal (JM) approximation 56 , well suited for studying the collective behaviour of conduction electrons in nanostructures 33,[57][58][59][60] . Within the JM, the positive ion cores at the lattice sites are not treated explicitly but represented by a uniform background density n + = (4πr 3 s /3) −1 confined within the jellium edges that define the geometrical surface of the nanoparticle.…”