Journal
PHYSICAL REVIEW APPLIED
Volume 13, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevApplied.13.014043
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Funding
- ERC [647100]
- French ANR [ANR-15-CE24-0008-01, ANR-17-CE30-0018-04]
- European COST action Nanocohybri [16218]
- INP-CNRS
- Scholarship program Alembert - IDEX Paris-Saclay Grant [ANR-11-IDEX-0003-02]
- Russian Science Foundation [17-12-01383]
- European Research Council (ERC) [647100] Funding Source: European Research Council (ERC)
- Agence Nationale de la Recherche (ANR) [ANR-17-CE30-0018, ANR-15-CE24-0008] Funding Source: Agence Nationale de la Recherche (ANR)
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Superconductor-ferromagnet (S/F) hybrid systems show interesting magnetotransport behaviors 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 the ferromagnetic textures. 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 the tuning of the strength of the vortex pinning (and memory) effects, as well as the field range in which they appear. This is done by using magnetic multilayers in which Co thin films are 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 magnetotransport properties. The underlying mechanisms are identified by comparing the experimental results to a magnetic pinning model.
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