Defect-implantation for the all-electrical detection of non-collinear spin-textures.

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, w

SUBMITTER: Lima Fernandes I 

PROVIDER: S-EPMC7105493 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature