Abstract
The "Dirac bubble" (δ-potential) model is applied to description of the structure of fullerenes C20 and C60 and photoelectron states. Energy spectra for σ valence orbitals for both fullerenes are obtained. Photoionization from two innermost delocalized electrons states (1s and 2p) is considered. The s-,p-,d- scattering phaseshifts are calculated, they demonstrate clear resonance properties which have oscillation in energy. Partial and total photoionization cross sections are obtained, the latter reveal an interesting "serrated" structure. Intriguing high-energy asymptotics is deduced, σ ∼ ω−5/2 sin2 (kR).
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