Field-resilient supercurrent diode in a multiferroic Josephson junction

Hung-Yu Yang (), Joseph J. Cuozzo, Anand Johnson Bokka, Gang Qiu, Christopher Eckberg, Yanfeng Lyu, Shuyuan Huyan, Ching-Wu Chu, Kenji Watanabe, Takashi Taniguchi and Kang L. Wang ()
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Hung-Yu Yang: University of California
Joseph J. Cuozzo: Sandia National Laboratories
Anand Johnson Bokka: University of California
Gang Qiu: University of California
Christopher Eckberg: University of California
Yanfeng Lyu: Nanjing University of Posts and Telecommunications
Shuyuan Huyan: University of Houston
Ching-Wu Chu: University of Houston
Kenji Watanabe: National Institute for Materials Science
Takashi Taniguchi: National Institute for Materials Science
Kang L. Wang: University of California

Nature Communications, 2025, vol. 16, issue 1, 1-9

Abstract: Abstract The research on supercurrent diodes has surged rapidly due to their potential applications in electronic circuits at cryogenic temperatures. To unlock this functionality, it is essential to find supercurrent diodes that can work consistently at zero magnetic field and under ubiquitous stray fields generated in electronic circuits. However, a supercurrent diode with robust field tolerance is currently lacking. Here, we demonstrate a field-resilient supercurrent diode by incorporating a 2D multiferroic material into a Josephson junction, and observed a pronounced supercurrent diode effect at zero magnetic field. More importantly, the supercurrent rectification persists over a wide and bipolar magnetic field range beyond industrial standards for field tolerance. By theoretically modeling a multiferroic Josephson junction, we unveil that the interplay between spin-orbit coupling and multiferroicity underlies the unusual field resilience of the observed diode effect. This work introduces multiferroic Josephson junctions as a new field-resilient superconducting device for cryogenic electronics.

Date: 2025
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DOI: 10.1038/s41467-025-63698-3

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