Core-valence interactions in Cr and Fe $2p$ photoemission

Core-valence interactions in Cr and Fe $2 p$ photoemission

C. Bethke, E. Kisker, N. B. Weber, and F. U. Hillebrecht

Phys. Rev. B 71, 024413 – Published 19 January 2005

Abstract

The magnetic linear dichroism (MLDAD) in Fe $2 p$ photoemission spectra of an epitaxial ultrathin iron film has been determined. The experiment reveals multiplet related spectra, which allow a detailed characterization of the photoemission process in a simple final state model, that emphasizes the core-valence interaction in Fe $2 p$ photoemission. The same model was used to describe the Cr $2 p$ photoemission spectrum of Cr adsorbates on a Fe surface. The importance of the investigations for the discussion of the $2 p$ photoelectron spectra of $3 d$ metals is pointed out.