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- W3100147462 abstract "Because of their ultrafast intrinsic dynamics and robustness against stray fields, antiferromagnetic insulators1–3 are promising candidates for spintronic components. Therefore, long-distance, low-dissipation spin transport and electrical manipulation of antiferromagnetic order are key research goals in antiferromagnetic spintronics. Here, we report experimental evidence of robust spin transport through an antiferromagnetic insulator, in our case the gate-controlled state that appears in charge-neutral graphene in a magnetic field4–6. Utilizing quantum Hall edge states as spin-dependent injectors and detectors, we observe large, non-local electrical signals across charge-neutral channels that are up to 5 μm long. The dependence of the signal on magnetic field, temperature and filling factor is consistent with spin superfluidity1,2,4,7–10 as the spin-transport mechanism. This work demonstrates the utility of graphene in the quantum Hall regime as a powerful model system for fundamental studies in antiferromagnetic spintronics. Spins are transmitted over a distance of 5 μm through a piece of antiferromagnetic graphene. This shows that graphene can be a platform to explore the fundamental physics of spin transport in antiferromagnets for application in spintronics." @default.
- W3100147462 created "2020-11-23" @default.
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- W3100147462 date "2018-06-11" @default.
- W3100147462 modified "2023-10-17" @default.
- W3100147462 title "Long-distance spin transport through a graphene quantum Hall antiferromagnet" @default.
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- W3100147462 doi "https://doi.org/10.1038/s41567-018-0161-5" @default.
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