Manipulation of vortex array via a magnetism-tunable spin-polarized scanning tunnelling microscopy
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.
Authors
- Hao Zheng (ORCID: https://orcid.org/0009-0004-9280-2592)
- Liang Liu (ORCID: https://orcid.org/0000-0001-5288-2023)
- Bing Xia (ORCID: https://orcid.org/0000-0001-9467-6092)
- Yi Tao Yang (ORCID: https://orcid.org/0000-0003-1011-2869)
- Yaoyi Li (ORCID: https://orcid.org/0000-0002-0054-4054)
- Canhua Liu (ORCID: https://orcid.org/0000-0003-2240-3559)
- Hao Yang (ORCID: https://orcid.org/0000-0002-5416-1833)
- Jianming Zheng (ORCID: https://orcid.org/0000-0003-1471-9078)
- Bo Yang (ORCID: https://orcid.org/0000-0002-0478-8881)
- Yi Zhang (ORCID: https://orcid.org/0000-0002-6375-1712)
- Xiaoxue Liu (ORCID: https://orcid.org/0000-0003-2390-4099)
- Hong‐Yuan Chen (ORCID: https://orcid.org/0000-0001-5217-668X)
- Shiyong Wang (ORCID: https://orcid.org/0000-0002-0297-4525)
- Dandan Guan (ORCID: https://orcid.org/0000-0003-4482-4215)
- Jie Cai (ORCID: https://orcid.org/0000-0002-3151-3963)
- Jin-Feng Jia
Institutions
- Shanghai Jiao Tong University (CN)
- Southern University of Science and Technology (CN)
- Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area (CN)
Publication Details
- Journal
- Chinese Physics B
- Published
- 2025-02-07
- DOI
- https://doi.org/10.1088/1674-1056/adb38d
- Primary Topic
- Characterization and Applications of Magnetic Nanoparticles
- Type
- article
- Field-Weighted Citation Impact
- 0.00