Photoelectrons from the (111) face of single-crystalline Fe show a high positive spin polarization of + 60% at threshold at $T=200\mathrm{}$ K and $H=11\mathrm{}$ kG. The results exclude an interpretation based on a localized model for the $3d$ states.

• Received 19 April 1978

DOI:https://doi.org/10.1103/PhysRevLett.40.1674