Hysteretic properties of thin cobalt films

Abstract

Magnetization reversal processes in thin evaporated films of cobalt have been studied by hysteresis loops measured using the Kerr transverse effect, and by the Kerr longitudinal effect for domain observations. The results, given for films deposited both with and without an applied field, indicate that the films are `normal' (i.e. with H_c < H_k) with uniaxial anisotropy constant K_u equal to 43 × 10³ erg cm^-3.