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説明:

Antiferromagnetic spintronics offers the potential for higher-frequency operations and improved insensitivity to magnetic fields compared to ferromagnetic spintronics. However, previous electrical techniques to detect antiferromagnetic dynamics have utilized large, millimeter-scale bulk crystals. In this work, we demonstrate direct electrical detection of antiferromagnetic resonance in structures on the few-micrometer scale using spin-filter tunneling in platinum ditelluride (PtTe2)/bilayer chromium sulfide bromide (CrSBr)/graphite junctions in which the tunnel barrier is the van der Waals antiferromagnet CrSBr. This sample geometry allows not only efficient detection but also electrical control of the antiferromagnetic resonance through spin-orbit torque from the PtTe2 electrode. The ability to efficiently detect and control antiferromagnetic resonance enables detailed studies of the physics governing these high-frequency dynamics.

権利情報:

• In Copyright
  

  This is the author’s version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science on 10 Jul 2025; DOI: 10.1126/science.adq8590.

キーワード: Antiferromagnetic spintronics, Spin-filter tunneling, Spin-orbit torque

刊行年月日: 2025-07-31

出版者: American Association for the Advancement of Science (AAAS)

掲載誌:

• Science (ISSN: 10959203) vol. 389 issue. 6759 p. 479-482

研究助成金:

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI:

公開URL: https://doi.org/10.1126/science.adq8590

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更新時刻: 2026-07-02 16:34:40 +0900

MDRでの公開時刻: 2026-07-02 18:28:23 +0900