Time-dependent close-coupling calculations of the double photoionization of He-C{sub 60}

Journal Article · Mon Feb 15 04:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.023407· OSTI ID:21408260

Ludlow, J A; Lee, Teck-Ghee; Pindzola, M S ^[1]

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1. Department of Physics, Auburn University, Auburn, Alabama 36849 (United States)

The double photoionization of a He atom enclosed in a C{sub 60} molecule, He-C{sub 60} was investigated using the time-dependent close-coupling method with the C{sub 60} molecule represented by a spherical shell potential and the He atom treated nonperturbatively. Comparisons are made with the double photoionization of a bare He atom. The ratio of the total double photoionization cross section of He-C{sub 60} to that of a bare He atom is found to exhibit oscillations due to reflection of a slow electron. This is confirmed by calculations of the single energy differential cross section that peaks at unequal energy sharing when one of the ejected electrons has an energy comparable to the C{sub 60} well depth. Triple differential cross sections are found to be shifted in magnitude, but unchanged in shape from the bare He atom.

• OSTI ID: 21408260
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 81; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CARBON
COMPARATIVE EVALUATIONS
CONFIGURATION
COUPLING
CROSS SECTIONS
DEPTH
DIFFERENTIAL CROSS SECTIONS
DIMENSIONS
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
EVALUATION
FERMIONS
FLUIDS
FULLERENES
GASES
HELIUM
IONIZATION
LEPTONS
MOLECULES
NONMETALS
OSCILLATIONS
PHOTOIONIZATION
POTENTIALS
RARE GASES
SPHERICAL CONFIGURATION
TIME DEPENDENCE