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Giant anomalous Hall effect from spin-chirality scattering in a chiral magnet

Author

Listed:
  • Yukako Fujishiro

    (The University of Tokyo)

  • Naoya Kanazawa

    (The University of Tokyo)

  • Ryosuke Kurihara

    (The Institute for Solid State Physics (ISSP), The University of Tokyo)

  • Hiroaki Ishizuka

    (The University of Tokyo)

  • Tomohiro Hori

    (The University of Tokyo)

  • Fehmi Sami Yasin

    (RIKEN Center for Emergent Matter Science (CEMS))

  • Xiuzhen Yu

    (RIKEN Center for Emergent Matter Science (CEMS))

  • Atsushi Tsukazaki

    (Institute for Materials Research (IMR), Tohoku University)

  • Masakazu Ichikawa

    (The University of Tokyo)

  • Masashi Kawasaki

    (The University of Tokyo
    RIKEN Center for Emergent Matter Science (CEMS))

  • Naoto Nagaosa

    (The University of Tokyo
    RIKEN Center for Emergent Matter Science (CEMS))

  • Masashi Tokunaga

    (The Institute for Solid State Physics (ISSP), The University of Tokyo)

  • Yoshinori Tokura

    (The University of Tokyo
    RIKEN Center for Emergent Matter Science (CEMS)
    Tokyo College, The University of Tokyo)

Abstract

The electrical Hall effect can be significantly enhanced through the interplay of the conduction electrons with magnetism, which is known as the anomalous Hall effect (AHE). Whereas the mechanism related to band topology has been intensively studied towards energy efficient electronics, those related to electron scattering have received limited attention. Here we report the observation of giant AHE of electron-scattering origin in a chiral magnet MnGe thin film. The Hall conductivity and Hall angle, respectively, reach $$40,000$$ 40 , 000 Ω−1 cm−1 and $$18$$ 18 % in the ferromagnetic region, exceeding the conventional limits of AHE of intrinsic and extrinsic origins, respectively. A possible origin of the large AHE is attributed to a new type of skew-scattering via thermally excited spin-clusters with scalar spin chirality, which is corroborated by the temperature–magnetic-field profile of the AHE being sensitive to the film-thickness or magneto-crystalline anisotropy. Our results may open up a new platform to explore giant AHE responses in various systems, including frustrated magnets and thin-film heterostructures.

Suggested Citation

  • Yukako Fujishiro & Naoya Kanazawa & Ryosuke Kurihara & Hiroaki Ishizuka & Tomohiro Hori & Fehmi Sami Yasin & Xiuzhen Yu & Atsushi Tsukazaki & Masakazu Ichikawa & Masashi Kawasaki & Naoto Nagaosa & Mas, 2021. "Giant anomalous Hall effect from spin-chirality scattering in a chiral magnet," Nature Communications, Nature, vol. 12(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-020-20384-w
    DOI: 10.1038/s41467-020-20384-w
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    Cited by:

    1. Meng Wang & Katsuhiro Tanaka & Shiro Sakai & Ziqian Wang & Ke Deng & Yingjie Lyu & Cong Li & Di Tian & Shengchun Shen & Naoki Ogawa & Naoya Kanazawa & Pu Yu & Ryotaro Arita & Fumitaka Kagawa, 2023. "Emergent zero-field anomalous Hall effect in a reconstructed rutile antiferromagnetic metal," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    2. Y. Hayashi & Y. Okamura & N. Kanazawa & T. Yu & T. Koretsune & R. Arita & A. Tsukazaki & M. Ichikawa & M. Kawasaki & Y. Tokura & Y. Takahashi, 2021. "Magneto-optical spectroscopy on Weyl nodes for anomalous and topological Hall effects in chiral MnGe," Nature Communications, Nature, vol. 12(1), pages 1-7, December.
    3. Shijie Xu & Bingqian Dai & Yuhao Jiang & Danrong Xiong & Houyi Cheng & Lixuan Tai & Meng Tang & Yadong Sun & Yu He & Baolin Yang & Yong Peng & Kang L. Wang & Weisheng Zhao, 2024. "Universal scaling law for chiral antiferromagnetism," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    4. Shao-Bo Liu & Congkuan Tian & Yuqiang Fang & Hongtao Rong & Lu Cao & Xinjian Wei & Hang Cui & Mantang Chen & Di Chen & Yuanjun Song & Jian Cui & Jiankun Li & Shuyue Guan & Shuang Jia & Chaoyu Chen & W, 2024. "Nematic Ising superconductivity with hidden magnetism in few-layer 6R-TaS2," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

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