Download file (1.2MB)
Download as zip (746KB)

コレクション

引用

説明:

Semiconductor diodes rectify electrical current to go in one direction only and hold significant technological importance in electronic devices [1]. On the other hand, supercurrent diodes rectify dissipationless supercurrent [2–4], and can serve as key elements of electronic circuits at cryogenic temperatures [5, 6]. To unlock such functionality, it is essential to find supercurrent diodes that can work consistently not only at zero magnetic field, but also under ubiquitous stray fields in a typical circuit environment. However, most of the zero-field supercurrent diodes discovered so far need to be initiated by a magnetic field [7–12], and the supercurrent rectification can be corrupted frequently by stray fields. Here, we demonstrate a stray-field-resilient supercurrent diode by incorporating a van der Waals multiferroic NiI2 [13–15] between two superconductors to form a Josephson junction. We observe a zero-field supercurrent diode effect with a rectification efficiency of eight percent. More importantly, the supercurrent rectification persists over a bipolar magnetic field range beyond an industrial test standard for field tolerance. By theoretically modeling a multiferroic Josephson junction, we unveil that the inter- play between a helimagnetic order and interfacial spin-orbit coupling underlies the unusual stray-field-resilient nature of the NiI2 Josephson junction. This work introduces multiferroic Josephson junctions as a new strategy for stray-field-resilient superconducting devices with potential electrical gate tunability for applications in cryogenic electronics.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: supercurrent diode
, multiferroic
, Josephson junction

刊行年月日: 2025-10-21

出版者: Springer Science and Business Media LLC

掲載誌:

• Nature Communications (ISSN: 20411723) vol. 16 issue. 1 9287

研究助成金:

• United States Department of Defense | United States Army | U.S. Army Research, Development and Engineering Command | Army Research Office W911NF-16-1-0472

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1038/s41467-025-63698-3

関連資料:

その他の識別子:

連絡先:

更新時刻: 2026-02-17 12:30:46 +0900

MDRでの公開時刻: 2026-02-17 09:11:02 +0900