Anomalous Hall Effect Mechanisms in Quasi-2D van der Waals Ferromagnet Fe0.29TaS2

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.

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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