Abstract Recently, the in-field δ M R interaction-plot technique has been extended for systems with shifted and asymmetric major magnetization hysteresis loops. In the present work an alternative definition of δ M R , allowing a better graphic visualization of this plot, is given. The method is applied to a series of Co/Cu/IrMn films in order to examine the variations, with the thickness of the nonmagnetic Cu layer, of the interactions emerging from the Co/IrMn interface and those coming from magnetic coupling within the Co film. Model simulations indicate that, for the case of symmetric major loops, the effects of the ferromagnet/antiferromagnet exchange coupling might not be identified by interaction plots, being only evidenced by the shift along the magnetic-field axis and the coercivity enhancement.

中文翻译：

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场内 δM 图：评估交换偏置系统中相互作用的简单而有效的方法

摘要 最近，场内 δ MR 相互作用图技术已扩展到具有偏移和不对称主磁化磁滞回线的系统。在目前的工作中，给出了 δ MR 的另一种定义，允许更好地图形可视化该图。该方法应用于一系列 Co/Cu/IrMn 薄膜，以检查从 Co/IrMn 界面产生的相互作用和来自 Co 薄膜内磁耦合的相互作用随非磁性 Cu 层厚度的变化. 模型模拟表明，对于对称主环的情况，铁磁体/反铁磁体交换耦合的影响可能无法通过相互作用图识别，只能通过沿磁场轴的位移和矫顽力增强来证明。