Electrical readout of topological spin order in ultrathin insulators with small magnetization

April 29, 2026

Crystal structure of h-RFeO3 showing spin structures

Using Pt coupled to the canted antiferromagnetic insulator hexagonal LuFe⁢O3 (h-LuFe⁢O3) we observe an unusually large and robust Hall response arising from the transfer of real-space spin topology across the interface via magnetic proximity effect (MPE).

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