Tuning the interfacial spin-orbit coupling with ferroelectricity

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 Sun; Jian Shen

doi:10.1038/s41467-020-16401-7

Tuning the interfacial spin-orbit coupling with ferroelectricity

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 Sun, Jian Shen

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

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, θ_SHE(net), in Pt at an interface with a ferroelectric material PZT (PbZr_0.2Ti_0.8O₃), 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 La_0.67Sr_0.33MnO₃ electrode. The effect of the ferroelectric polarization on θ_SHE(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 θ_SHE(net). This is attributed to the reversed polarity of the spin Hall angle in the 1^st-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.

Original language	English (US)
Article number	2627
Journal	Nature communications
Volume	11
Issue number	1
DOIs	https://doi.org/10.1038/s41467-020-16401-7
State	Published - Dec 1 2020
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Biochemistry, Genetics and Molecular Biology
General Physics and Astronomy

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title = "Tuning the interfacial spin-orbit coupling with ferroelectricity",

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.",

author = "Mei Fang and Yanmei Wang and Hui Wang and Yusheng Hou and Eric Vetter and Yunfang Kou and Wenting Yang and Lifeng Yin and Zhu Xiao and Zhou Li and Lu Jiang and Lee, {Ho Nyung} and Shufeng Zhang and Ruqian Wu and Xiaoshan Xu and Dali Sun and Jian Shen",

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year = "2020",

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doi = "10.1038/s41467-020-16401-7",

language = "English (US)",

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T1 - Tuning the interfacial spin-orbit coupling with ferroelectricity

AU - Fang, Mei

AU - Wang, Yanmei

AU - Wang, Hui

AU - Hou, Yusheng

AU - Vetter, Eric

AU - Kou, Yunfang

AU - Yang, Wenting

AU - Yin, Lifeng

AU - Xiao, Zhu

AU - Li, Zhou

AU - Jiang, Lu

AU - Lee, Ho Nyung

AU - Zhang, Shufeng

AU - Wu, Ruqian

AU - Xu, Xiaoshan

AU - Sun, Dali

AU - Shen, Jian

PY - 2020/12/1

Y1 - 2020/12/1

N2 - 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.

AB - 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.

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Tuning the interfacial spin-orbit coupling with ferroelectricity

Abstract

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