Nonreciprocal transport in a bilayer of MnBi₂Te₄ and Pt
MnBi2Te4 (MBT) is the first intrinsic magnetic topological insulator with the interaction of spin-momentum locked surface electrons and intrinsic magnetism, and it exhibits novel magnetic and topological phenomena. Recent studies suggested that the interaction of electrons and magnetism can be affec...
| Main Authors: | , , , , , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Online Access: | https://hdl.handle.net/10356/162243 |
| _version_ | 1811690876203696128 |
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| author | Ye, Chen Xie, Xiangnan Lv, Wenxing Huang, Ke Yang, Allen Jian Jiang, Sicong Liu, Xue Zhu, Dapeng Qiu, Xuepeng Tong, Mingyu Zhou, Tong Hsu, Chuang-Han Chang, Guoqing Lin, Hsin Li, Peisen Yang, Kesong Wang, Zhenyu Jiang, Tian Wang, Renshaw Xiao |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Ye, Chen Xie, Xiangnan Lv, Wenxing Huang, Ke Yang, Allen Jian Jiang, Sicong Liu, Xue Zhu, Dapeng Qiu, Xuepeng Tong, Mingyu Zhou, Tong Hsu, Chuang-Han Chang, Guoqing Lin, Hsin Li, Peisen Yang, Kesong Wang, Zhenyu Jiang, Tian Wang, Renshaw Xiao |
| author_sort | Ye, Chen |
| collection | NTU |
| description | MnBi2Te4 (MBT) is the first intrinsic magnetic topological insulator with the interaction of spin-momentum locked surface electrons and intrinsic magnetism, and it exhibits novel magnetic and topological phenomena. Recent studies suggested that the interaction of electrons and magnetism can be affected by the Mn-doped Bi2Te3 phase at the surface due to inevitable structural defects. Here, we report an observation of nonreciprocal transport, that is, current-direction-dependent resistance, in a bilayer composed of antiferromagnetic MBT and nonmagnetic Pt. The emergence of the nonreciprocal response below the Néel temperature confirms a correlation between nonreciprocity and intrinsic magnetism in the surface state of MBT. The angular dependence of the nonreciprocal transport indicates that nonreciprocal response originates from the asymmetry scattering of electrons at the surface of MBT mediated by magnon. Our work provides an insight into nonreciprocity arising from the correlation between magnetism and Dirac surface electrons in intrinsic magnetic topological insulators. |
| first_indexed | 2024-10-01T06:10:57Z |
| format | Journal Article |
| id | ntu-10356/162243 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:10:57Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1622432022-10-11T01:39:33Z Nonreciprocal transport in a bilayer of MnBi₂Te₄ and Pt Ye, Chen Xie, Xiangnan Lv, Wenxing Huang, Ke Yang, Allen Jian Jiang, Sicong Liu, Xue Zhu, Dapeng Qiu, Xuepeng Tong, Mingyu Zhou, Tong Hsu, Chuang-Han Chang, Guoqing Lin, Hsin Li, Peisen Yang, Kesong Wang, Zhenyu Jiang, Tian Wang, Renshaw Xiao School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences Science::Physics Magnetic Topological Insulator Nonreciprocal Transport MnBi2Te4 (MBT) is the first intrinsic magnetic topological insulator with the interaction of spin-momentum locked surface electrons and intrinsic magnetism, and it exhibits novel magnetic and topological phenomena. Recent studies suggested that the interaction of electrons and magnetism can be affected by the Mn-doped Bi2Te3 phase at the surface due to inevitable structural defects. Here, we report an observation of nonreciprocal transport, that is, current-direction-dependent resistance, in a bilayer composed of antiferromagnetic MBT and nonmagnetic Pt. The emergence of the nonreciprocal response below the Néel temperature confirms a correlation between nonreciprocity and intrinsic magnetism in the surface state of MBT. The angular dependence of the nonreciprocal transport indicates that nonreciprocal response originates from the asymmetry scattering of electrons at the surface of MBT mediated by magnon. Our work provides an insight into nonreciprocity arising from the correlation between magnetism and Dirac surface electrons in intrinsic magnetic topological insulators. Agency for Science, Technology and Research (A*STAR) Ministry of Education (MOE) Nanyang Technological University National Research Foundation (NRF) X.R.W. acknowledges supports from the Nanyang Assistant Professorship grant from Nanyang Technological University, Academic Research Fund Tier 2 (Grant No. MOE-T2EP50120-0006 and MOE-T2EP50220-0016) and Tier 3 (Grant No.MOE2018-T3-1-002) from Singapore Ministry of Education, the Singapore National Research Foundation (NRF) under the competitive Research Programs (CRP Grant No. NRFCRP21-2018-0003), and Agency for Science, Technology, and Research (A*STAR) under its AME IRG grant (Project No. A20E5c0094). G.C. acknowledges the support of the National Research Foundation, Singapore under its Fellowship Award (NRF-NRFF13-2021-0010) and the Nanyang Assistant Professorship grant from Nanyang Technological University. H.L. acknowledges the support by the Ministry of Science and Technology (MOST) in Taiwan under grant number MOST 109-2112-M-001-014-MY3. Z.W. acknowledges supports from the General Program of Beijing Academy of Quantum Information Sciences (Project Y18G17), and the National Natural Science Foundation of China (Grant 12004434). 2022-10-11T01:39:33Z 2022-10-11T01:39:33Z 2022 Journal Article Ye, C., Xie, X., Lv, W., Huang, K., Yang, A. J., Jiang, S., Liu, X., Zhu, D., Qiu, X., Tong, M., Zhou, T., Hsu, C., Chang, G., Lin, H., Li, P., Yang, K., Wang, Z., Jiang, T. & Wang, R. X. (2022). Nonreciprocal transport in a bilayer of MnBi₂Te₄ and Pt. Nano Letters, 22(3), 1366-1373. https://dx.doi.org/10.1021/acs.nanolett.1c04756 1530-6984 https://hdl.handle.net/10356/162243 10.1021/acs.nanolett.1c04756 35073094 2-s2.0-85124143072 3 22 1366 1373 en MOE-T2EP50120-0006 MOE-T2EP50220-0016 MOE2018-T3-1-002 NRFCRP21-2018-0003 A20E5c0094 NRF-NRFF13-2021-0010 Nano Letters © 2022 American Chemical Society. All rights reserved. |
| spellingShingle | Science::Physics Magnetic Topological Insulator Nonreciprocal Transport Ye, Chen Xie, Xiangnan Lv, Wenxing Huang, Ke Yang, Allen Jian Jiang, Sicong Liu, Xue Zhu, Dapeng Qiu, Xuepeng Tong, Mingyu Zhou, Tong Hsu, Chuang-Han Chang, Guoqing Lin, Hsin Li, Peisen Yang, Kesong Wang, Zhenyu Jiang, Tian Wang, Renshaw Xiao Nonreciprocal transport in a bilayer of MnBi₂Te₄ and Pt |
| title | Nonreciprocal transport in a bilayer of MnBi₂Te₄ and Pt |
| title_full | Nonreciprocal transport in a bilayer of MnBi₂Te₄ and Pt |
| title_fullStr | Nonreciprocal transport in a bilayer of MnBi₂Te₄ and Pt |
| title_full_unstemmed | Nonreciprocal transport in a bilayer of MnBi₂Te₄ and Pt |
| title_short | Nonreciprocal transport in a bilayer of MnBi₂Te₄ and Pt |
| title_sort | nonreciprocal transport in a bilayer of mnbi₂te₄ and pt |
| topic | Science::Physics Magnetic Topological Insulator Nonreciprocal Transport |
| url | https://hdl.handle.net/10356/162243 |
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