We have experimentally investigated the effect of V and Zr insertion thickness on perpendicular magnetic anisotropy (PMA) in [Co/Pt multilayers]/[Zr, V]/CoFeB (Hard/Soft) composite structures. Micromagnetic simulations have been performed to study the effect of the Gilbert damping constant on the switching characteristics in a hard/soft composite structure for weak and strong interlayer exchange coupling. The V and Zr insertions are studied due to their low Gilbert damping constant with the CoFeB interface. For both insertions, the interlayer exchange coupling remained ferromagnetic in nature for all the thicknesses studied. We observed an increase in PMA with increasing V and Zr insertion thicknesses. The composite layer with V insertion provides thermal stability comparable to the previously reported Ta insertion. From micromagnetic simulations, we observed that the effect of the Gilbert damping constant on switching characteristics is largest for thinner insertions (strong ferromagnetic coupling) and the effect diminishes with increasing insertion thickness (weak ferromagnetic coupling).

我们已经通过实验研究了 V 和 Zr 插入厚度对 [Co/Pt 多层]/[Zr, V]/CoFeB（硬/软）复合结构中垂直磁各向异性 (PMA) 的影响。已经进行了微磁模拟来研究吉尔伯特阻尼常数对硬/软复合结构中弱和强层间交换耦合开关特性的影响。研究了 V 和 Zr 插入，因为它们与 CoFeB 界面的吉尔伯特阻尼常数低。对于两种插入，层间交换耦合对于所有研究的厚度本质上保持铁磁性。我们观察到 PMA 随着 V 和 Zr 插入厚度的增加而增加。具有 V 插入的复合层提供了与先前报道的 Ta 插入相当的热稳定性。从微磁模拟，