Scalable high-temperature superconducting diodes enabled by intrinsic Josephson junctions

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ID: 314639
2026
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Abstract
Abstract Superconducting diodes, enabling nonreciprocal supercurrents, hold promise for dissipationless electronics and time-reversal-symmetry-broken physics. Developing platforms that combine high-temperature operation with scalable fabrication remains a critical challenge for the field. Here, we show that the intrinsic Josephson junctions naturally in the layered cuprate Bi2Sr2CaCu2O8+δ offer a robust, lithography-compatible platform for high-temperature superconducting diodes. By controlling the number of naturally stacked junctions, we achieve tunable nonreciprocity, with single-surface junctions exhibiting peak efficiency and programmable zero-field memory states. A microscopic model attributes this behavior to geometry-induced anharmonicity in the current-phase relation, amplified by atomic-scale barriers. Moreover, by exploiting the natural junction architecture, we fabricate arrays containing hundreds of reproducible diodes. By uniting high-temperature operation with scalability and programmable functionality, intrinsic Josephson diodes establish a practical route towards superconducting electronics and open new avenues of nonreciprocal superconducting transport.
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Authors Zihan Wei, Youkai 友凯 Qiao 乔, Yang-Yang Lyu, Da Wang, Tianyu Li, Leonardo Rodrigues Cadorim, Ping Zhang, Wen-Cheng Yue, Dingding Li, Ziyu Song, Zixi Wang, Yunfan Wang, Milorad V Milošević, Yong-Lei Wang, Huabing Wang, Peiheng Wu
Journal national science review
Year 2026
DOI
10.1093/nsr/nwag285
URL
https://doi.org/10.1093/nsr/nwag285
Keywords Keywords not found

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