Attosecond time delay in the photoionization of Mn in the region of the3p→3dgiant resonance

Abstract

The initial insight into time delay in Mn photoionization in the region of the 3p → 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 [MnIt 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.

High harmonic generation-2ω attosecond stereo-photoionization interferometry in N2

“…In the spectral domain, since the width of the resonance [34] is around 8 eV, this would correspond to a lifetime of ∼ 80 as. The direct link between photoemission delay and spectral width has already been discussed, for instance in the case of autoionizing resonances [35]. Although this link cannot be generalized, our time-resolved measurements give a reasonably good agreement with the lifetime close to the resonance maximum (at HH21).…”

Attosecond delay of xenon4dphotoionization at the giant resonance and Cooper minimum

“…This is a unique spectral feature largely originated from a manybody correlation driven collective process involving predominantly 10 inner electrons in the 4d subshell [30][31][32][33]. This feature is fundamentally different from noncollective, large resonances, such as, the 3p → 3d Auger in Mn [34]. Even recently, with the advent of newer spectroscopic techniques, the Xe GDR continues to remain an eminent testing ground of many-body effects in high-harmonic generation (HHG) [35,36] and free electron laser [37].…”

Attosecond-Resolved Electron Dynamics in Many-Electron Atoms: Quantitative Theory and Comparison with Measurements

“…By inference, in other cases of photoionization, the relative TD might indeed be affected by the presence of a very wide scattering resonance, or of closely lying resonances, at the energy where the photoelectron is emitted. For example, the dependence of time delays on resonance states was examined recently by Sabbar et al in studies of neon and argon [58], and by Dolmatov et al in theoretical studies of the photoionization of Mn [59].…”