Short-range magnetic order near the Curie temperature iron from spin-resolved photoemission

Abstract

Spin- and angle-resolved photoemission spectra calculated in a bulk tight-binding formalism for bcc iron clusters with varying local exchange fields strongly depend on the assumed degree of magnetic order. Comparison with experimental data implies that iron has a short-range magnetic order of at least 4 A\r{} in the vicinity of the Curie temperature.