Features of the manifestation of antiferromagnetism of the Cr-Mn alloy in the film composites of the (Cr-Mn)/Fe type

This paper presents a detailed study of the hysteresis properties of film structures based on bilayers of the Cr-Mn/Fe type. The temperature dependences of several parameters of the hysteresis loops of the Fe layers are determined for films varying in the composition and thickness of the Cr-Mn layer, as well as in the structure of buffer coatings. The compositional and temperature intervals of the existence of the antiferromagnetic ordering in the Cr-Mn layer and the related features of the temperature changes in the coercive force, its anisotropy in the plane of the films and the exchange bias field are established. The causal analysis of the established regularities is performed.