副教授，湖南大学“岳麓****”
研究领域：二维材料的制备、新奇电学性质的探测和应用
欢迎具有物理、材料背景的本科生/硕士/博士/博士后加盟！
联系方式：lisiyu@hnu.edu.cn






基本信息
李思宇，理学博士，湖南大学材料科学与工程学院副教授，湖南大学“岳麓****”。
1993年出生于河南省漯河市，2015年本科毕业于北京师范大学物理学系获理学学士学位，同年直博，2020年博士毕业于北京师范大学物理学系凝聚态物理专业，获理学博士学位，并获得“北京师范大学优秀毕业生”及“北京市优秀毕业生”称号。2020年6月入职湖南大学材料科学与工程学院工作。
主要研究领域为二维材料的制备、新奇电学性质的探测和应用，近年来在该领域发表SCI论文二十余篇，包括Phys. Rev. Lett.,Nature Electron.,Phys. Rev. B,2D Materials等。


教育背景
2015-2020：北京师范大学，物理学系，凝聚态物理专业，博士，导师：何林教授
2011-2015：北京师范大学，物理学系，物理学专业，学士


工作履历
2020.6-今：湖南大学材料科学与工程学院，副教授


研究概况
近年来，利用扫描隧道显微镜（STM）在二维材料新奇量子物态研究领域取得了一系列科研成果，共发表SCI论文20余篇，其中以第一作者和共同第一作者身份发表论文13篇（包括3篇Physical Review Letters，8篇Physical Review B、1篇2D Materials和1篇Physical Review Applied），多次参加Graphene Week、凝聚态物理会议、物理年会等国际国内学术会议并作口头报告。作为主要成员参与了两项国家自然科学基金面上项目，主持并结题了一项校级科研基金项目。主要研究工作包括：
（1）石墨烯中谷电子学的研究：利用磁场和赝磁场共同作用、利用磁场调控双层石墨烯Berry相位，在石墨烯中单电子精度上实现了谷极化和谷翻转；
（2）石墨烯平带中强关联物态的研究：通过小转角双层石墨烯、ABC三层石墨烯、垂直外磁场在石墨烯体系中引入平带，率先利用STM探测了这些平带中的强关联物态，包括轨道铁磁态、量子霍尔铁磁态等；
（3）发展了一套在纳米尺度单电子精度上探测体系简并度的方法——Edge-free量子点法，该方法具有普适性，可用于探测不同二维材料体系的对称性破缺态。


学术成果
1. S.-Y. Li, Y. Su, Y.-N. Ren, L. He, Valley polarization and inversion in strained graphene via pseudo-Landau levels, valley splitting of real Landau levels, and confined states, Phys. Rev. Lett. 124, 106802 (2020).
2.Y.-W. Liu*, Z. Hou*, S.-Y. Li*, Q.-F. Sun, L. He, Movable valley switch driven by Berry phase in bilayer-graphene resonators, Phys. Rev. Lett. 124, 166801 (2020). (并列一作)
3.Y. Zhang*, S.-Y. Li*, H. Huang, W.-T. Li, J.-B. Qiao, W.-X. Wang, L.-J. Yin, K.-K. Bai, W. Duan, L. He, Scanning tunneling microscopy of the p magnetism of a single carbon vacancy in graphene, Phys. Rev. Lett. 117, 166801 (2016). (并列一作)
4.S.-Y. Li, Y. Zhang, Y.-N. Ren, J. Liu, X. Dai, L. He, Experimental evidence for orbital magnetic moments generated by moiré-scale current loops in twisted bilayer graphene, Phys. Rev. B 102, 121406(R) (2020). (Editors’ Suggestion)
5.S.-Y. Li, Y. Zhang, L.-J. Yin, L. He, Scanning tunneling microscope study of quantum Hall isospin ferromagnetic states in the zero Landau level in a graphene monolayer, Phys. Rev. B 100, 085437 (2019).
6. S.-Y. Li, Y.-N. Ren, Y.-W. Liu, M.-X. Chen, H. Jiang, L. He, Nanoscale detection of valley-dependent spin splitting around atomic defects of graphene, 2D Mater. 6, 031005 (2019).
7.S.-Y. Li, K.-K. Bai, W.-J. Zuo, Y.-W. Liu, Z.-Q. Fu, W.-X. Wang, Yu. Zhang, L.-J. Yin, J.-B. Qiao, L. He, Tunneling spectra of a quasifreestanding graphene monolayer, Phys. Rev. Appl. 9, 054031 (2018).
8.S.-Y. Li, H. Liu, J.-B. Qiao, H. Jiang, L. He, Magnetic-field-controlled negative differential conductance in scanning tunneling spectroscopy of graphene npn junction resonators, Phys. Rev. B 97, 115442 (2018).
9. S.-Y. Li, K.-Q. Liu, L.-J. Yin, W.-X. Wang, W. Yan, X.-Q. Yang, J.-K. Yang, H. Liu, H. Jiang, L. He, Splitting of Van Hove singularities in slightly twisted bilayer graphene, Phys. Rev. B 96, 155416 (2017).
10. S.-Y. Li, M. Zhou, J.-B. Qiao, W. Duan, L. He, Wide-band-gap wrinkled nanoribbon-like structures in a continuous metallic graphene sheet, Phys. Rev. B 94, 085419 (2016).
11. S.-Y. Li, K.-K. Bai, L.-J. Yin, J.-B. Qiao, W.-X. Wang, L. He, Observation of unconventional splitting of Landau levels in strained graphene, Phys. Rev. B 92, 245302 (2015).
12. W. Yan*, S.-Y. Li*, L. J. Yin, J. B. Qiao, J.-C. Nie, andL. He, Spatially resolving unconventional interface Landau quantization in a graphene monolayer-bilayer planar junction,Phys. Rev. B93, 195408 (2016). (并列一作)
13. L.-J. Yin*, S.-Y. Li*, J.-B. Qiao, J.-C. Nie, L. He, Landau quantization in graphene monolayer, Bernal bilayer, and Bernal trilayer on graphite surface, Phys. Rev. B 91, 115405 (2015). (并列一作)
14. L.-J. Yin, L.-J. Shi, S.-Y. Li, Y. Zhang, Z.-H. Guo, andL. He, High-magnetic field tunneling spectra of ABC-stacked trilayer graphene on graphite,Phys. Rev. Lett. 122, 146802 (2019).
15. W.-X. Wang, Y.-W. Wei, S.-Y. Li, X. Q. Li, X. S. Wu, J. Feng,L. He, Imaging the dynamics of individual hydrogen atom intercalated between two graphene sheets,Phys. Rev. B 97, 085407 (2018).
16. Y.-N. Ren, C. Lu, Y. Zhang, S.Y. Li, Y.-W. Liu, C. Yan, Z.-H. Guo, C.-C. Liu, F. Yang, L. He, Spectroscopic evidence for a spin and valley polarized metallic state in a non-magic-angle twisted bilayer graphene, ACS Nano 14, 13081 (2020).
17. W.-X. Wang, H. Jiang, Y. Zhang, S.-Y. Li, H. Liu, X.-Q. Li, X.-S. Wu,L. He, Scanning tunneling microscopy and spectroscopy of finite-size twisted bilayer graphene,Phys. Rev. B 96, 115434 (2017).
18. L.-J. Yin, K.-K. Bai, W.-X. Wang, S.-Y. Li, Y. Zhang,L. He, Landau quantization of Dirac fermions in graphene and its multilayers,Front. Phys. 12, 127408 (2017).
19. W.-X. Wang, M. Zhou, X.-Q. Li, S.-Y. Li, X.-S. Wu, W.-H. Duan,L. He, Energy gaps of atomically precise armchair graphene nanoribbons,Phys. Rev. B 93, 241403 (Rapid Communications) (2016).
20. L.-J. Yin, Y. Zhang, J. B. Qiao, S.-Y. Li,L. He, Experimental observation of surface states and Landau levels bending in bilayer graphene,Phys. Rev. B 93, 125422 (2016).
21. K.-K. Bai, Y.-C. Wei, J. B. Qiao, S.-Y. Li, L.-J. Yin, W. Yan, J.-C. Nie,L. He, Detecting giant electron-hole asymmetry in graphene monolayer generated by strain and charge-defect scattering via Landau level spectroscopy,Phys. Rev. B92, 121405 (Rapid Communications) (2015).
22. Y.-W. Liu, J.-B. Qiao, C. Yan, Y. Zhang, S.-Y. Li,L. He, Magnetism near half-filling of a van Hove singularity in twisted graphene bilayer,Phys. Rev. B 99, 201408 (Rapid Communications) (2019).
23. W.-X. Wang, L.-J. Yin, J.-B. Qiao, T. C. Cai, S.-Y. Li, R.-F. Dou, J.-C. Nie, X.-S. Wu,L. He, Atomic resolution imaging of the two-component Dirac-Landau levels in a gapped graphene monolayer,Phys. Rev. B 92, 165420 (2015).
24. C. Yan, D. Ma, J. Qiao, H. Zhong, L. Yang, S.-Y. Li, Z.-Q. Fu, Y. Zhang,L. He, Scanning tunneling microscopy study of the quasicrystalline 30^otwisted bilayer graphene,2D Mater.6, 045041 (2019).
25. Y. Zhang, Z. Hou, Y.-X. Zhao, Z.-H. Guo, Y.-W. Liu, S.-Y. Li, Y.-N. Ren, Q.-F. Sun,L. He, Correlation-induced valley splitting and orbital magnetism in strain-induced zero-energy flat band in twisted bilayer graphene near the magic angle,Phys. Rev. B102, 081403 (2020).


奖励与荣誉
2020年北京市优秀毕业生
2020年北京师范大学优秀毕业生
2016-2019年连续四年获得研究生国家奖学金