Manipulation of vortex array via a magnetism-tunable spin-polarized scanning tunnelling microscopy

doi:10.1088/1674-1056/adb38d

中国物理B ›› 2025, Vol. 34 ›› Issue (3): 37402-037402.doi: 10.1088/1674-1056/adb38d

Manipulation of vortex array via a magnetism-tunable spin-polarized scanning tunnelling microscopy

Bing Xia(夏冰)¹, Hong-Yuan Chen(陈虹源)¹, Jian Zheng(郑健)¹, Bo Yang(杨波)¹, Jie Cai(蔡杰)¹, Yi Zhang(章毅)¹, Yi Yang(杨毅)¹, Hao Yang(杨浩)¹, Dan-Dan Guan(管丹丹)¹, Xiao-Xue Liu(刘晓雪)¹, Liang Liu(刘亮)¹, Yao-Yi Li(李耀义)¹, Shi-Yong Wang(王世勇)¹, Can-Hua Liu(刘灿华)¹, Hao Zheng(郑浩)¹, and Jin-Feng Jia(贾金锋)^1,2,3,†

1 TD Lee Institute, Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China;
2 Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China;
3 Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area (Guangdong), Shenzhen 518045, China

收稿日期:2024-12-08 修回日期:2025-01-19 接受日期:2025-02-07 出版日期:2025-03-15 发布日期:2025-03-15
通讯作者: Jin-Feng Jia E-mail:jfjia@sjtu.edu.cn
基金资助:
Project supported by the National Key Research & Development Program of China (Grant Nos. 2019YFA0308600 and 2020YFA0309000), the National Natural Science Foundation of China (Grant Nos. 92365302, 92065201, 22325203, 92265105, 12074247, 12174252, and 52102336), the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB28000000), and the Science and Technology Commission of Shanghai Municipality (Grant Nos. 2019SHZDZX01, 19JC1412701, 20QA1405100, 24LZ1401000, and LZPY2024-04). We also acknowledge financial support from the Innovation Program for Quantum Science and Technology (Grant No. 2021ZD0302500).

Manipulation of vortex array via a magnetism-tunable spin-polarized scanning tunnelling microscopy

1 TD Lee Institute, Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China;
2 Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China;
3 Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area (Guangdong), Shenzhen 518045, China

Received:2024-12-08 Revised:2025-01-19 Accepted:2025-02-07 Online:2025-03-15 Published:2025-03-15
Contact: Jin-Feng Jia E-mail:jfjia@sjtu.edu.cn
Supported by:
Project supported by the National Key Research & Development Program of China (Grant Nos. 2019YFA0308600 and 2020YFA0309000), the National Natural Science Foundation of China (Grant Nos. 92365302, 92065201, 22325203, 92265105, 12074247, 12174252, and 52102336), the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB28000000), and the Science and Technology Commission of Shanghai Municipality (Grant Nos. 2019SHZDZX01, 19JC1412701, 20QA1405100, 24LZ1401000, and LZPY2024-04). We also acknowledge financial support from the Innovation Program for Quantum Science and Technology (Grant No. 2021ZD0302500).

摘要/Abstract

摘要： Manipulating and braiding Majorana zero modes (MZM) are a critical step toward realizing topological quantum computing. The primary challenge is controlling the vortex, which hosts the MZM, within a superconducting film in a spatially precise manner. To address this, we developed a magnetic force-based vortex control technology using the STM system with a self-designed four-electrode piezo-scanner tube and investigated vortex manipulation on the NbSe$_{2}$ superconducting film. We employed ferromagnetic tips to control the movement of vortex array induced by the tip's remanent magnetism. A magnetic core solenoid device was integrated into the STM system and a strong magnetic tip demagnetization technique was developed, providing a viable technical solution for further enabling single vortex manipulation.

关键词: vortex manipulation, scanning tunneling microscope, magnetic tip, demagnetization technique

Abstract: Manipulating and braiding Majorana zero modes (MZM) are a critical step toward realizing topological quantum computing. The primary challenge is controlling the vortex, which hosts the MZM, within a superconducting film in a spatially precise manner. To address this, we developed a magnetic force-based vortex control technology using the STM system with a self-designed four-electrode piezo-scanner tube and investigated vortex manipulation on the NbSe$_{2}$ superconducting film. We employed ferromagnetic tips to control the movement of vortex array induced by the tip's remanent magnetism. A magnetic core solenoid device was integrated into the STM system and a strong magnetic tip demagnetization technique was developed, providing a viable technical solution for further enabling single vortex manipulation.

Key words: vortex manipulation, scanning tunneling microscope, magnetic tip, demagnetization technique

中图分类号: (Vortex pinning (includes mechanisms and flux creep))

74.25.Wx

75.60.-d (Domain effects, magnetization curves, and hysteresis) 07.79.Cz (Scanning tunneling microscopes) 03.67.Hk (Quantum communication)

Bing Xia(夏冰), Hong-Yuan Chen(陈虹源), Jian Zheng(郑健), Bo Yang(杨波), Jie Cai(蔡杰), Yi Zhang(章毅), Yi Yang(杨毅), Hao Yang(杨浩), Dan-Dan Guan(管丹丹), Xiao-Xue Liu(刘晓雪), Liang Liu(刘亮), Yao-Yi Li(李耀义), Shi-Yong Wang(王世勇), Can-Hua Liu(刘灿华), Hao Zheng(郑浩), and Jin-Feng Jia(贾金锋). Manipulation of vortex array via a magnetism-tunable spin-polarized scanning tunnelling microscopy[J]. 中国物理B, 2025, 34(3): 37402-037402.

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Manipulation of vortex array via a magnetism-tunable spin-polarized scanning tunnelling microscopy

Manipulation of vortex array via a magnetism-tunable spin-polarized scanning tunnelling microscopy

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