Japanese Journal of Applied Physics · 1976 · 59 citations · 0 references
Natural SciencesMaterials EngineeringMaterials ScienceCondensed Matter PhysicsMagnetic MaterialsThin FilmsMagnetic Thin FilmsMagnetism In SolidsMagneto-optic MaterialsSurface MagnetismThin Film Magnetic PropertiesThin Film Optical PropertiesFilm ThicknessHysteresis LoopsMagnetic HysteresisMagneto-optic Kerr EffectMagneto-optic Thin FilmsMagneto-optical Kerr EffectMagneto-optical PropertiesOptical Kerr Effect
Hysteresis loop anomaly in Gd-Co films has been studied by measuring magneto-optical Kerr loops at a temperature range from 20 to 60°C. Anomalous loops were observed at one surface of the films and in a certain temperature range. The other surface always gave normal loops. All the features of the observed anomalous loops can be explained by a magnetization gradient model along the film thickness.