Related Experiment Video
Updated: Jul 18, 2026

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
Published on: October 9, 2012
Atomic quadrupolar photoemission asymmetry parameters from a solid state measurement
1Physics Department, University of Warwick, Coventry CV4 7AL, United Kingdom.
Abstract:
A method for measuring the asymmetry parameter gamma arising from dipole-quadrupole interference in core-level photoemission is proposed which is based on condensed thin films and exploits the influence of this asymmetry in photoemission monitoring of x-ray standing wave field absorption. The high density of material in this method offers some advantages over a conventional gas-phase measurement. Results are presented for C, O, and F 1s photoemission at photon energies around 3 keV. The combined nondipole asymmetry factor (delta+gamma/3) for non- s-states can be determined in a similar way.
Related Concept Videos
Atomic Nuclei: Nuclear Spin State Population Distribution
Molecular Spectroscopy: Absorption and Emission
Mass Analyzers: Common Types
Atomic Spectroscopy: Absorption, Emission, and Fluorescence
Atomic Absorption Spectroscopy: Radiation and Light Sources
Two common narrow-range 'line' sources used in AAS are hollow-cathode lamps (HCLs) and...
Atomic Emission Spectroscopy: Lab

