Anomalous Hall Effect Mechanisms in Quasi-2D van der Waals Ferromagnet Fe<sub>0.29</sub>TaS<sub>2</sub>

ORAL

Abstract


The recent emergence of two-dimensional (2D) van der Waals ferromagnets has provided a new platform for exploring magnetism in the flatland and for designing 2D ferromagnet-based spintronics devices. Despite intensive studies, the anomalous Hall effect (AHE) mechanisms in 2D van der Waals ferromagnets have not been investigated yet. In this talk, I will present the AHE mechanisms in quasi-2D van der Waals ferromagnet Fe0.29TaS2 via systematically measuring Fe0.29TaS2 devices with thickness from 14 nm to bulk single crystal. The dominant AHE mechanism is found to be skew scattering in bulk single crystal, and the contribution from intrinsic mechanism emerges and become more relevant as the Fe0.29TaS2 thickness decrease. Besides, the coercive field in Fe0.29TaS2 thin flake decrease as the Fe0.29TaS2 thickness decrease.

*National Basic Research Programs of China, National Natural Science Foundation of China and the Key Research Program of the Chinese Academy of Sciences

–

Presenters

  • Ranran Cai

    • International Center for Quantum Materials, Peking University

Authors

  • Ranran Cai

    • International Center for Quantum Materials, Peking University

  • Wenyu Xing

    • International Center for Quantum Materials, Peking University
    • International Center for Quantum Materials, School of Physics, Peking University

  • Huibing Zhou

    • Physics, Peking University
    • International Center for Quantum Materials, Peking University

  • Yangyang Chen

    • International Center for Quantum Materials, Peking University

  • Yunyan Yao

    • International Center for Quantum Materials, Peking University
    • International Center for Quantum Materials, School of Physics , Peking University, Beijing

  • Yang Ma

    • International Center for Quantum Materials, Peking University
    • International Center for Quantum Materials, School of Physics , Peking University, Beijing

  • Xincheng Xie

    • International Center for Quantum Materials, Peking University
    • International Center for Quantum Materials, School of Physics , Peking University, Beijing
    • International Center for Quantum Materials, School of Physics, Peking University, Beijing, China

  • Shuang Jia

    • International Center for Quantum Materials, Peking University
    • Peking University, China
    • Physics, Peking University
    • Peking University
    • International Center for Quantum Materials, School of Physics, Peking University

  • Wei Han

    • International Center for Quantum Materials, Peking University
    • International Center for Quantum Materials, School of Physics , Peking University, Beijing