Photoionization of Ce$^{3+}$ - Ce$^{4+}$

TL;DR

This study investigates the photoionization process of cerium ions within a specific energy range, comparing theoretical calculations with experimental data, and discusses the effects of confinement and carbon cage suppression in endohedral fullerenes.

Contribution

The paper applies the random phase approximation with exchange to analyze Ce ion photoionization and compares results with recent experiments, elucidating confinement resonance and suppression effects.

Findings

Confirmation of suppression effect in Ce@C$_{82}^+$ photoionization

Identification of confinement resonance causes

Agreement between theoretical and experimental results

Abstract

Photoionization of the Ce$^{3+}$ - Ce$^{4+}$ process has been studied using the random phase approximation with exchange method in the energy region 100-150 eV. Comparison of our results with the recent measurement [M\"uller {\it et al}, Phys. Rev. Lett. {\bf 101}, 133001 (2008)] confirms the suppression effect of the carbon cage in the endohedral fullerene Ce@C$_{82}^+$ photoionization. The reasons for the cause of the confinement resonance and the suppression effect are discussed.