论文标题
室温补偿的CO/GD/CO/GD的磁静静态,基于合成的Ferrimagnets
Magnetostatics of Room Temperature Compensated Co/Gd/Co/Gd-based Synthetic Ferrimagnets
论文作者
论文摘要
接口工程的灵活性以及磁化磁化的全光开关的访问,使合成的Ferrimagnets成为高级光电旋转设备的有趣候选者。此外,由于它们的分层结构和无序界面,它们也对分级磁性材料的新兴领域承诺。该材料系统中磁顺序的最快,最有效的自旋轨道扭矩操纵通常是在补偿时进行的。在这里,我们介绍了合成铁磁CO/GD/CO/GD系统中磁化补偿和垂直磁各向异性条件的系统实验和建模研究。已经开发了基于该系统的CO/GD接口的部分混合的模型,该模型已经很好地解释了实验,并提供了一种新的工具来了解其磁性特征。更具体地说,这项工作提供了在GD中CO接近性诱导的磁化以及封盖层在GD磁化中扮演的作用的新见解。
Flexibility for interface engineering, and access to all-optical switching of the magnetization, make synthetic ferrimagnets an interesting candidate for advanced opto-spintronic devices. Moreover, due to their layered structure and disordered interfaces they also bear promise for the emerging field of graded magnetic materials. The fastest and most efficient spin-orbit torque driven manipulation of the magnetic order in this material system generally takes place at compensation. Here, we present a systematic experimental and modeling study of the conditions for magnetization compensation and perpendicular magnetic anisotropy in the synthetic ferrimagnetic Co/Gd/Co/Gd system. A model based on partial intermixing at the Co/Gd interfaces of this system has been developed which explains the experiments well, and provides a new tool to understand its magnetic characteristics. More specifically, this work provides new insight in the decay of the Co proximity-induced magnetization in the Gd, and the role the capping layer plays in the Gd magnetization.