首页|Electric modulation of the Fermi arc spin transport via three-terminal configuration in topological semimetal nanowires

Electric modulation of the Fermi arc spin transport via three-terminal configuration in topological semimetal nanowires

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Spin-momentum locking is a key feature of the topological surface state,which plays an important role in spintronics.The electrical detection of current-induced spin polarization protected by the spin-momentum locking in nonmagnetic sys-tems provides a new platform for developing spintronics,while previous studies were mostly based on magnetic materials.In this study,the spin transport measurement of Dirac semimetal Cd3As2 was studied by three-terminal geometry,and a hysteresis loop signal with high resistance and low resistance state was observed.The hysteresis was reversed by reversing the current direction,which illustrates the spin-momentum locking feature of Cd3As2.Furthermore,we realized the on-off states of the spin signals through electric modulation of the Fermi arc via the three-terminal configuration,which enables the great potential of Cd3As2 in spin field-effect transistors.

topological semimetalspin-momentum lockingquantum transportspin field-effect transistor

祝光宇、宁纪爱、王建坤、刘心洁、杨佳洁、林本川、王硕

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Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen 518055,China

International Quantum Academy,Shenzhen 518048,China

Guangdong Provincial Key Laboratory of Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen 518055,China

National Key Research and Development Program of ChinaNational Key Research and Development Program of ChinaNational Natural science Foundation of ChinaNational Natural science Foundation of ChinaNational Natural science Foundation of ChinaKey-Area Research and Development Program of Guangdong ProvinceGuangdong Provincial Key LaboratoryGuangdong Basic and Applied Basic Research Foundation

2020YFA03093002022YFA14037001200415812074162919642012018B0303270012019B1212030022022B1515130005

2024

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子:0.995
ISSN:1674-1056
年,卷(期):2024.33(1)
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