Attosecond time delay in the photoionization of Mn in the region of the $3p\to 3d$ giant resonance

Abstract

The initial insight into time delay in Mn photoionization in the region of the $3p\to 3d$ giant autoionization resonance is gained in the framework of the "spin-polarized" random phase approximation with exchange. The dramatic effect of the giant autoionization resonance on time delay of photoemission from the $3d$ and $4s$ valence subshells of the Mn atom is unraveled. Strong sensitivity of the time delay of the $4s$ photoemission to the final-state term of the ion-remainder [$\mathrm{M}{\mathrm{n}}^{+}(4s^1,$${}^{5}S)$ vs.~$\mathrm{M}{\mathrm{n}}^{+}(4s^1,$${}^{7}S)$] is discovered. It is shown that photoionization time delay in the autoionizing resonance region is explicitly associated with the resonance lifetime, which can, thus, be directly measured in attosecond time delay experiments. Similar features are expected to emerge in photoionization time delays of other transition-metal and rare-earth atoms with half-filed subshells that possess giant autoionization resonances as well.

8 pages, 4 figures, 49 references

References in corpus (5)

• Delay in atomic photoionization
• Time delay between photoemission from the 2p and 2s subshells of Neon
• Modulation of attosecond beating in resonant two-photon ionization
• Study of attosecond delays using perturbation diagrams and exterior complex scaling
• Angle-resolved time delay in photoemission