Abstract
We report unidirectional charge transport in a noncentrosymmetric superconductor that is exchange-coupled with a van der Waals layered antiferromagnetic insulator. The bilayer device exhibits bias-dependent superconducting critical-current variations of up to 16%, with magnetochiral anisotropy reaching . Furthermore, the spin-valve structure exhibits the superconducting diode effect with critical-current variations of up to 40%. We also utilize the magnetic proximity effect to induce switching in the superconducting state of the spin-valve structure. Finally, it exhibits an infinite magnetoresistance ratio depending on the field sweep direction and magnetization configuration. Our result demonstrates a novel route for enhancing the nonreciprocal response in the weak external field regime () by exploiting the magnetic proximity effect.
- Received 8 November 2021
- Revised 29 March 2023
- Accepted 25 April 2023
DOI:https://doi.org/10.1103/PhysRevResearch.5.L022064
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
Published by the American Physical Society