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Tuning the interfacial spin-orbit coupling with ferroelectricity

Author

Listed:
  • Mei Fang

    (Fudan University
    Central South University)

  • Yanmei Wang

    (Fudan University)

  • Hui Wang

    (Central South University
    University of California)

  • Yusheng Hou

    (University of California)

  • Eric Vetter

    (North Carolina State University
    North Carolina State University)

  • Yunfang Kou

    (Fudan University)

  • Wenting Yang

    (Fudan University)

  • Lifeng Yin

    (Fudan University
    Fudan University
    Collaborative Innovation Center of Advanced Microstructures)

  • Zhu Xiao

    (Central South University)

  • Zhou Li

    (Central South University)

  • Lu Jiang

    (Oak Ridge National Laboratory)

  • Ho Nyung Lee

    (Oak Ridge National Laboratory)

  • Shufeng Zhang

    (University of Arizona)

  • Ruqian Wu

    (University of California)

  • Xiaoshan Xu

    (University of Nebraska)

  • Dali Sun

    (North Carolina State University
    North Carolina State University)

  • Jian Shen

    (Fudan University
    Fudan University
    Collaborative Innovation Center of Advanced Microstructures)

Abstract

Detection and manipulation of spin current lie in the core of spintronics. Here we report an active control of a net spin Hall angle, θSHE(net), in Pt at an interface with a ferroelectric material PZT (PbZr0.2Ti0.8O3), using its ferroelectric polarization. The spin Hall angle in the ultra-thin Pt layer is measured using the inverse spin Hall effect with a pulsed tunneling current from a ferromagnetic La0.67Sr0.33MnO3 electrode. The effect of the ferroelectric polarization on θSHE(net) is enhanced when the thickness of the Pt layer is reduced. When the Pt layer is thinner than 6 nm, switching the ferroelectric polarization even changes the sign of θSHE(net). This is attributed to the reversed polarity of the spin Hall angle in the 1st-layer Pt at the PZT/Pt interface when the ferroelectric polarization is inverted, as supported by the first-principles calculations. These findings suggest a route for designing future energy efficient spin-orbitronic devices using ferroelectric control.

Suggested Citation

  • Mei Fang & Yanmei Wang & Hui Wang & Yusheng Hou & Eric Vetter & Yunfang Kou & Wenting Yang & Lifeng Yin & Zhu Xiao & Zhou Li & Lu Jiang & Ho Nyung Lee & Shufeng Zhang & Ruqian Wu & Xiaoshan Xu & Dali , 2020. "Tuning the interfacial spin-orbit coupling with ferroelectricity," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-16401-7
    DOI: 10.1038/s41467-020-16401-7
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    Cited by:

    1. Yaoxiang Jiang & Jianguo Niu & Cong Wang & Donglai Xue & Xiaohui Shi & Weibo Gao & Shifeng Zhao, 2024. "Experimental demonstration of tunable hybrid improper ferroelectricity in double-perovskite superlattice films," Nature Communications, Nature, vol. 15(1), pages 1-11, December.

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