Angular correlation between photoelectrons and auger electrons from K-shell ionization of neon.

Calculated and measured angular correlation between photoelectrons and Auger electrons from K-shell ionization

We have applied a recently developed computational method to an experimental puzzle that involves a slow outgoing electron that is scattered by a high-energy Auger electron. Although the experiment seemed to be in a regime accurately described by classical mechanics, such classical calculations could not accurately model the angular distribution of the electron pair. Using the wavefunction from...

Photoelectron and ICD electron angular distributions from fixed-in-space neon dimers

We report on molecular frame angular distributions of 2s photoelectrons and electrons emitted by interatomic Coulombic decay from neon dimers. We found that the measured angular distribution of the photoelectron strongly depends on the environment of the cluster. The experimental results are in excellent agreement with frozen core Hartree–Fock calculations. The ICD electrons show slight variati...

Spin polarization of Auger- and of photoelectrons from barium atoms exposed to circularly polarized radiation and their cross comparison

New results of spin polarization of both photoelectrons and Auger electrons are reported after 5p photoionization of free Ba atoms with circularly polarized light. A substantial polarization transfer from the spin polarized photons to the spin polarized photoelectrons and via the hole state orientation to the spin polarized Auger-electrons is observed. The cross comparison of the results for ph...

Angular correlation between photoelectrons and Auger electrons within scattering theory

Nondipole Effects in Photoionization of Rare Gas Atoms

We present a discussion of octupole and other O(k2) (k = 2π/λ, where λ is the photon wavelength) corrections to to the angular distribution of photoelectrons from noble-gas atoms. These corrections are characterized by four parameters ∆β, λ, μ, and ν constrained by λ+μ+ν = 0. As an example, we consider photoionization of n = 2 shell of neon for photon energies below 2 keV. The resulting angular...