Elastic scattering of intermediate-energy electrons fromC60molecules

Abstract

Experimental and calculated differential cross sections for elastic scattering of electrons by C 60 molecules at collision energies of 100 to 500 eV are reported. The elastic differential cross sections were measured in a standard crossed-beam apparatus, while the calculations were performed employing the Schwinger multichannel technique at the static-exchange level. Diffraction effects, some due to the overall spherical-cage structure and some to scattering by individual C atoms, are observed in both the measured and calculated cross sections.

Shannon entropy of resonant scattered state in the e–C60 elastic collision

“…Tanaka et al [21] conducted the only experimental study of electron-C 60 collision to date which presents the differential cross-section in low energy region at a specific angle. Further, a handful of theoretical studies have been performed by Gianturco et al [22] and Hargreaves et al [23] which address the high energy region of electron scattering (100-500 eV).…”

Diffractive Imaging of C60 Structural Deformations Induced by Intense Femtosecond Midinfrared Laser Fields

“…Finally, we note that although experiment and theory conclusively observed the elongation of the cage, the agreement is not quantitatively perfect, likely caused by DCS modeling via IAM as described above. DCS modeling with more realistic assumptions such as the Schwinger multichannel method which includes interference effects due to Bragg-type electron diffraction on the C 60 cage [45] could improve the agreement between experiment and theory.…”

Elastic electron scattering from Ar@C60 z+: Dirac partial-wave analysis

“…In doing so, we have employed two contrasting types of model potential: ASW and GASW. GASW provides a smooth variation of interaction The vast oscillatory structures at the different energies in the DCS are representative of the C 60 molecule's features [47,48,63] and are also attributed to the structure of the encaged atom when a charged endohedral target is considered, which are mainly found at large scattering angles. The static-exchange model interaction considered for encaged Ar is a good choice, which is further improved by adding the polarization potential.…”

“…There have been experimental works on elastic electron scattering from a C 60 target, including the report on low-energy e-C 60 scattering by Tanaka et al [46], scattering performed at intermediate energies by Hargreaves et al [47], and a DCS measurement at 809 eV by Gerchikov et al [48]. Furthermore, experimental studies have measured the electron/atomic-ion impact ionization cross-section [49][50][51] as well as the electron attachment cross-section [52,53] of fullerene C 60 and its charged variants.…”