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Large out-of-plane spin–orbit torque in topological Weyl semimetal TaIrTe4

Author

Listed:
  • Lakhan Bainsla

    (Chalmers University of Technology
    Indian Institute of Technology Ropar)

  • Bing Zhao

    (Chalmers University of Technology)

  • Nilamani Behera

    (Göteborg)

  • Anamul Md. Hoque

    (Chalmers University of Technology)

  • Lars Sjöström

    (Chalmers University of Technology)

  • Anna Martinelli

    (Chalmers University of Technology)

  • Mahmoud Abdel-Hafiez

    (University of Sharjah
    Uppsala University)

  • Johan Åkerman

    (Göteborg
    Tohoku University
    Tohoku University)

  • Saroj P. Dash

    (Chalmers University of Technology
    Chalmers University of Technology
    Chalmers University of Technology)

Abstract

The unique electronic properties of topological quantum materials, such as protected surface states and exotic quasiparticles, can provide an out-of-plane spin-polarized current needed for external field-free magnetization switching of magnets with perpendicular magnetic anisotropy. Conventional spin–orbit torque (SOT) materials provide only an in-plane spin-polarized current, and recently explored materials with lower crystal symmetries provide very low out-of-plane spin-polarized current components, which are not suitable for energy-efficient SOT applications. Here, we demonstrate a large out-of-plane damping-like SOT at room temperature using the topological Weyl semimetal candidate TaIrTe4 with a lower crystal symmetry. We performed spin–torque ferromagnetic resonance (STFMR) and second harmonic Hall measurements on devices based on TaIrTe4/Ni80Fe20 heterostructures and observed a large out-of-plane damping-like SOT efficiency. The out-of-plane spin Hall conductivity is estimated to be (4.05 ± 0.23)×104 (ℏ ⁄ 2e) (Ωm)−1, which is an order of magnitude higher than the reported values in other materials.

Suggested Citation

  • Lakhan Bainsla & Bing Zhao & Nilamani Behera & Anamul Md. Hoque & Lars Sjöström & Anna Martinelli & Mahmoud Abdel-Hafiez & Johan Åkerman & Saroj P. Dash, 2024. "Large out-of-plane spin–orbit torque in topological Weyl semimetal TaIrTe4," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
  • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-48872-3
    DOI: 10.1038/s41467-024-48872-3
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    References listed on IDEAS

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    1. Binoy K. Hazra & Banabir Pal & Jae-Chun Jeon & Robin R. Neumann & Börge Göbel & Bharat Grover & Hakan Deniz & Andriy Styervoyedov & Holger Meyerheim & Ingrid Mertig & See-Hun Yang & Stuart S. P. Parki, 2023. "Generation of out-of-plane polarized spin current by spin swapping," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
    2. Mohammad Haidar & Ahmad A. Awad & Mykola Dvornik & Roman Khymyn & Afshin Houshang & Johan Åkerman, 2019. "A single layer spin-orbit torque nano-oscillator," Nature Communications, Nature, vol. 10(1), pages 1-6, December.
    3. A. A. Tulapurkar & Y. Suzuki & A. Fukushima & H. Kubota & H. Maehara & K. Tsunekawa & D. D. Djayaprawira & N. Watanabe & S. Yuasa, 2005. "Spin-torque diode effect in magnetic tunnel junctions," Nature, Nature, vol. 438(7066), pages 339-342, November.
    4. Hyunsoo Yang & Sergio O. Valenzuela & Mairbek Chshiev & Sébastien Couet & Bernard Dieny & Bruno Dlubak & Albert Fert & Kevin Garello & Matthieu Jamet & Dae-Eun Jeong & Kangho Lee & Taeyoung Lee & Mari, 2022. "Two-dimensional materials prospects for non-volatile spintronic memories," Nature, Nature, vol. 606(7915), pages 663-673, June.
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