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説明:

Originating from spin and orbital motion, van der Waals (vdW) ferromagnetism has emerged as a significant platform to experimentally access the fundamental physics of magnetism in reduced dimensions, including quantum computing, sensing, and data storage. However, currently, available vdW ferromagnetic materials can be achieved with mechanical exfoliation and low-temperature operation, which completely limits the monolithic integration of vdW ferromagnets with other functional materials. Nonetheless, the direct synthesis of room-temperature vdW ferromagnets has not been achieved commercially, owing to the imprecise control of the layer-by-layer growth, high-temperature synthesis, and low yield. To overcome these limitations, herein, an artificial vdW ferromagnetic platform has been reported, which activates the nano-crystallization and its corresponding ferromagnetism in bulk VSe2 via Ar + H2S plasma sulfurization. Sweeping the magnetic field, vdW ferromagnetism has been spatially resolved, which experimentally correlates with magnetization reversal behavior and domain pinning effects. Furthermore, nano-crystallization of VSe2 is clearly validated with transmission electron microscopy, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and selected area diffraction analysis. In conclusion, it is envisioned that the artificial vdW ferromagnetic platform can artificially inject the ferromagnetism in bulk vdW VSe2, which has not been possible previously.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: van der Waals ferromagnetism, room-temperature
, VSe2

刊行年月日: 2025-05-30

出版者: Wiley

掲載誌:

• Advanced Science (ISSN: 21983844) vol. 12 issue. 34 e04746

研究助成金:

• National Research Foundation of Korea
• Ministry of Education 2022R1A3B1078163
• Institute for Basic Science IBS‐R027‐D1
• National Research Foundation
• Ministry of Science and ICT, South Korea RS‐2024‐00437142
• Ministry of Trade, Industry and Energy 1415187584
• Korea Evaluation Institute of Industrial Technology 20024772

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1002/advs.202504746

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更新時刻: 2026-02-16 16:30:43 +0900

MDRでの公開時刻: 2026-02-16 13:57:34 +0900