| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Electric modulation of the Fermi arc spin transport via three-terminal configuration in topological semimetal nanowires |
| Guang-Yu Zhu(祝光宇)1,2,†, Ji-Ai Ning(宁纪爱)1,2,†, Jian-Kun Wang(王建坤)1,2,†, Xin-Jie Liu(刘心洁)1,2, Jia-Jie Yang(杨佳洁)1,2, Ben-Chuan Lin(林本川)1,2,3,‡, and Shuo Wang(王硕)1,2,3,§ |
1 Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China;
2 International Quantum Academy, Shenzhen 518048, China;
3 Guangdong Provincial Key Laboratory of Quantum Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China |
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Abstract 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 systems 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.
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Received: 27 March 2023
Revised: 04 June 2023
Accepted manuscript online: 25 June 2023
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PACS:
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73.20.-r
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(Electron states at surfaces and interfaces)
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73.20.At
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(Surface states, band structure, electron density of states)
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73.21.Hb
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(Quantum wires)
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75.47.-m
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(Magnetotransport phenomena; materials for magnetotransport)
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| Fund: Project supported by the National Key Research and Development Program of China (Grant Nos. 2020YFA0309300 and 2022YFA1403700), the National Natural Science Foundation of China (Grant Nos. 12004158, 12074162, and 91964201), the Key-Area Research and Development Program of Guangdong Province (Grant No. 2018B030327001), Guangdong Provincial Key Laboratory (Grant No. 2019B121203002), and Guangdong Basic and Applied Basic Research Foundation (Grant No. 2022B1515130005). |
Corresponding Authors:
Ben-Chuan Lin, Shuo Wang
E-mail: linbc@sustech.edu.cn;wangs6@sustech.edu.cn
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Cite this article:
Guang-Yu Zhu(祝光宇), Ji-Ai Ning(宁纪爱), Jian-Kun Wang(王建坤), Xin-Jie Liu(刘心洁), Jia-Jie Yang(杨佳洁), Ben-Chuan Lin(林本川), and Shuo Wang(王硕) Electric modulation of the Fermi arc spin transport via three-terminal configuration in topological semimetal nanowires 2024 Chin. Phys. B 33 017305
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