Origin of the training effect and asymmetry of the magnetization in polycrystalline exchange bias systems
作者： Steven Brems , Kristiaan Temst , Chris Van Haesendonck
DOI: 10.1103/PHYSREVLETT.99.067201
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摘要: The training effect and asymmetry in exchange-coupled polycrystalline CoO/Co bilayers with in-plane magnetization has been investigated. This system is selected for its large initial of the magnetic hysteresis after field cooling, which removed training. Applying an perpendicular to cooling largely restores untrained state pronounced asymmetry. possibility reinduce strongly depends on magnitude field, providing key identify physical origin removal These effects result from misalignment between ferromagnetic uncompensated granular antiferromagnet.
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