Large Antisymmetric Interlayer Exchange Coupling Enabling Perpendicular Magnetization Switching by an In-Plane Magnetic Field
Large Antisymmetric Interlayer Exchange Coupling Enabling Perpendicular Magnetization Switching by an In-Plane Magnetic Field
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DOI：
10.1103/physrevapplied.17.054036
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发表时间：
2022-05
影响因子：
4.6
通讯作者：
Hiroto Masuda;T. Seki;Y. Yamane;R. Modak;Kenji Uchida;J. Ieda;Y. Lau;S. Fukami;K. Takanashi-K.-Takanas
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文献类型：
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作者：
Hiroto Masuda;T. Seki;Y. Yamane;R. Modak;Kenji Uchida;J. Ieda;Y. Lau;S. Fukami;K. Takanashi-K.-Takanas
最近发现的反对称层间交换耦合（AIEC）通过诱导磁化倾斜在合成反铁磁体的磁化转换中发挥着关键作用。据报道，大 AIEC 是通过楔形层垂直磁化的。 AIEC的有效场与对称层间交换耦合有关，为增强AIEC提供了指导。我们为合成反铁磁体开发了扩展的斯托纳-沃尔法斯模型，揭示了其磁化强度切换的关键因素。结合理论知识和实验结果，垂直磁化翻转仅通过面内磁场实现。
The recently discovered antisymmetric interlayer exchange coupling (AIEC) plays pivotal roles in the magnetization switching of a synthetic antiferromagnet by inducing magnetization canting. Large AIEC is reported for perpendicularly magnetizedwith wedge-shaped layers. The effective field of AIEC is related with symmetric interlayer exchange coupling, providing a guide for enhancing AIEC. We develop an extended Stoner–Wohlfarth model for a synthetic antiferromagnet, revealing key factors in its magnetization switching. Combining the theoretical knowledge and the experimental results, perpendicular magnetization switching is achieved solely by an in-plane magnetic field.