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- W3014003839 abstract "Abstract The viability of past, current and future devices for information technology hinges on their sensitivity to the presence of impurities. The latter can reshape extrinsic Hall effects or the efficiency of magnetoresistance effects, essential for spintronics, and lead to resistivity anomalies, the so-called Kondo effect. Here, we demonstrate that atomic defects enable highly efficient all-electrical detection of spin-swirling textures, in particular magnetic skyrmions, which are promising bit candidates in future spintronics devices. The concomitant impurity-driven alteration of the electronic structure and magnetic non-collinearity gives rise to a new spin-mixing magnetoresistance (XMR defect ). Taking advantage of the impurities-induced amplification of the bare transport signal, which depends on their chemical nature, a defect-enhanced XMR (DXMR) is proposed. Both XMR modes are systematised for 3 d and 4 d transition metal defects implanted at the vicinity of skyrmions generated in PdFe bilayer deposited on Ir(111). The ineluctability of impurities in devices promotes the implementation of defect-enabled XMR modes in reading architectures with immediate implications in magnetic storage technologies." @default.
- W3014003839 created "2020-04-03" @default.
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- W3014003839 date "2020-03-30" @default.
- W3014003839 modified "2023-10-14" @default.
- W3014003839 title "Defect-implantation for the all-electrical detection of non-collinear spin-textures" @default.
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- W3014003839 doi "https://doi.org/10.1038/s41467-020-15379-6" @default.
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