In this work, we investigated hysteresis properties and domain structure of x 100-x Fe Ni (x = 0–20%) films. Two cases were considered: x 100-x Fe Ni monolayers and 20 80 x 100-x Fe Ni /FeMn/Fe Ni exchange-biased multilayers.Работа выполнена при поддержке Минобрнауки России, проект RFMEFI57815X0125