Revivification of confinement resonances in the photoionization of $A$@C${}_{60}$ endohedral atoms far above thresholds

Abstract

It is discovered theoretically that significant confinement resonances in an $nl$ photoionization of a \textit{multielectron} atom $A$ encaged in carbon fullerenes, A@C${}_{60}$, may re-appear and be strong at photon energies far exceeding the $nl$ ionization threshold, as a general phenomenon. The reasons for this phenomenon are unraveled. The Ne $2p$ photoionization of the endohedral anion Ne@C${}_{60}^{5-}$ in the photon energy region of about a thousand eV above the $2p$ threshold is chosen as case study.

3 pages, 1 figure, Revtex4

Cited by in corpus (5)

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• Confinement and correlation effects in the Xe@C60 generalized oscillator strengths
• Drastically enhanced high-order harmonic generation from endofullerenes
• Polarization of the C${}_{60}$ cage by the photoelectron, interior static polarization of C${}_{60}$ by the ion-remainder and atomic-core relaxation in $A$@C${}_{60}$ photoionization
• On possible multiple occurrences of the breakdown of the dipole and dipole-quadrupole approximations in angle-differential spectra of fullerene anions, C${}_n^{-}$