Superconductor/Ferromagnets (S/F) hybrids show an interesting magneto-transport that result from the transfer of properties between both constituents. For instance, magnetic memory can be transferred from the F into the S through the pinning of superconducting vortices by ferromagnetic domains. The ability to tailor this type of induced behavior is important to broaden its range of application. Here we show that engineering the F magnetization reversal allows tuning the strength of the vortex pinning (and memory) effects, as well as the field range in which they appear. This is done by using F multilayers in which Co is combined with different heavy metals (Ru, Ir, Pt). By choosing the materials, thicknesses, and stacking order of the layers, we can design the characteristic domain size and morphology, from out-of-plane magnetized stripe domains to much smaller magnetic skyrmions. These changes strongly affect the magneto-transport properties. The underlying mechanisms are identified by comparing the experimental results to a magnetic pinning model.

中文翻译：

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超导体/铁磁体多层中的量身定制的磁通钉扎，其工程磁畴形态从条带到天体

超导体/铁磁体（S / F）混合体显示出一种有趣的磁传输，这是由于两种成分之间的性质转移所致。例如，可以通过铁磁畴钉扎超导涡旋将磁存储器从F转移到S。定制这种类型的诱发行为的能力对于扩大其应用范围很重要。在这里，我们显示出通过对F磁化反转进行工程设计，可以调整涡旋钉扎（和记忆）效应的强度，以及它们出现的磁场范围。这是通过使用F多层膜完成的，其中Co与不同的重金属（Ru，Ir，Pt）结合。通过选择层的材料，厚度和堆叠顺序，我们可以设计特征域尺寸和形态，从平面外的磁化磁畴到小得多的磁天文离子。这些变化极大地影响了磁传输性能。通过将实验结果与磁性钉扎模型进行比较，可以确定潜在的机理。