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Supercurrents in magnetic materials heat up

Previous demonstrations of long-range supercurrents through magnetic materials were achieved only at liquid helium temperatures. Now, using specially tailored samples, long-distance supercurrents have been realized at temperatures as high as 40 K.

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Fig. 1: Device structure and characterization.


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Correspondence to Norman O. Birge.

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Birge, N.O. Supercurrents in magnetic materials heat up. Nat. Mater. 21, 137–138 (2022).

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