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; Kang L. Wang

doi:10.1038/s41467-025-63698-3

arXiv · 2412.12344

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·Kang L. Wang

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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 multiferroic material into a Josephson junction. We first 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.

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cond-mat.supr-con cond-mat.mes-hall cond-mat.mtrl-sci

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Hung-Yu Yang, Joseph J. Cuozzo, Anand Johnson Bokka, Gang Qiu, Christopher Eckberg, Yanfeng Lyu, Shuyuan Huyan, Ching-Wu Chu, Kenji Watanabe, Takashi Taniguchi, Kang L. Wang. 2024-12-16. Field-Resilient Supercurrent Diode in a Multiferroic Josephson Junction. https://doi.org/10.1038/s41467-025-63698-3

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