Wenyu He

Wenyu's Group

 Group Leader 丨 Our Research 丨 Publications 丨 Group Members

My research interest mainly focuses on the field of condensed matter. In the field of condensed matter, since the discovery of the fractional quantum Hall effect and the high Tc superconductivity in 1980s, the study has been focused on the topological states, electronic strong correlation effects, and unconventional superconductivity phenomenon for a long time. In recent years, the advent of monolayer graphene has boosted the emergence of various types of new two-dimensional quantum materials, which can serve as good platforms for the study of topological states, strong correlation effects and superconductivity. Considering the emerging various types of two-dimensional quantum materials, especially the two-dimensional transition metal dichalcogenides, twisted bilayer graphene and two-dimensional Moiré superlattice materials, our group will apply quantum field theory, mean field theory and group theory to carry out a series of study on the correlated insulating states, topological states, superconducting states, and electromagnetic properties that are associated with those new quantum materials. The research carried out in our group will focus on the predictions of new physical states and properties that can emerge in the quantum materials, and we will also work on explanations to new experimental observations. Meanwhile, our group have strong interest in developing electronic device with practical applications that are based on the new quantum materials. In the past 5 years, my research works mainly focused on the following topics:

1. Quantum anomalous Hall effect in two-dimensional Moiré superlattice materials;

2. Magnetoelectric effect in metals and superconductors;

3. Quantum spin liquid phase in 1T-TaS₂ and 1T-TaSe₂;

4. Superconducting states in two-dimensional transition metal dichalcogenides;

5. Quantum oscillations;

6. The Kondo effect;

……

Apart from the research directions mentioned above, I hold open mind to encourage group members to explore other new research directions by themselves.

I joined ShanghaiTech very recently and the research group is recruiting students and researchers who are interested in the field of condensed matter. Our group plans to recruit 1-2 students and 1-2 postdoctoral fellows per year. 

For excellent postdoctoral fellows, our group can offer highly competative salary (around 300K RMB per year), and help the postdoctoral fellows to apply the in-campus housing at a discount. For the postodoctoral fellow with strong academic performance, he (or she) can apply to transfer to be an assitant researcher if he (or she) wishes. The assistant researcher, different from the postdoctoral fellow, is a long term job provided by the university. According to the current policy of the university, the assistant researcher can get promoted to be an associated researcher and finally become a permanent researcher. During the promotion process, the researcher's salary and benefits get increasd accordingly. In the aspect of the research funding, our group will provide every postdoctoral fellow and assitant researcher with adequate funding support. The group will encourage and recommend the postdoctoral fellow and assistant researcher to apply Shanghai Super Postdoctoral Fellow, Postdoctoral Innovative Talents Support Program, Shanghai Sailing Program and other support plans for young researchers. Applicants who are interested in joining our group can send the CV to hewy@shanghaitech.edu.cn by email.

Besides the graduate students and postdoctoral fellows, undergraduate students who are interested in condensed matter theory are welcome to start research projects in our group

Research works (*equal contribution, †co-corresponding author)

Publications after joining ShanghaiTech

1. Quantum spin liquid sigatures in monolayer 1T-NbSe₂, Q. Zhang*, W.-Y. He*, Y. Zhang*, Y. Chen*, L. Jia, Y. Hou, H. Ji, H. Yang, T. Zhang, L. Liu, H.-J. Gao, T. A. Jung, and Y. Wang, Nat. Commun. 15, 2336 (2024).

2. Electronic density of states of a U(1) quantum spin liquid with spinon Fermi surface. I. orbital mangetic field effects, W.-Y. He^† and Patrick A. Lee^†, Phys. Rev. B 107, 195155 (2023). Editor's Suggestion.

3. Electronic density of states of a U(1) quantum spin liquid with spinon Fermi surface. II. Zeeman mangetic field effects, W.-Y. He^† and Patrick A. Lee^†, Phys. Rev. B 107, 195156 (2023). Editor's Suggestion.

4. Evidence for a spinon Kondo effect in cobalt atoms on single-layer 1T-TaSe₂, Y. Chen^*, W.-Y. He^*, W. Ruan^*, J. hwang, S. Tang, R. L. Lee, M. Wu, T. Zhu, C. Zhang, H. Ryu, F. Wang, S. G. Louie, Z.-X. Shen, S.-K. Mo, P. A. Lee and M. F. Crommie, Nat. Phys. 18, 1335 (2022).

5. Magnetic impurity as a local probe of the U(1) quantum spin liquid with spinon Fermi surface, W.-Y. He^† and Patrick A. Lee^†, Phys. Rev. B 105, 195156 (2022).

Selected Publications before joining ShanghaiTech

6. Superconducting orbital magnetoelectric effect and its evolution across the superconductor-normal metal phase transition, W.-Y. He^†, and K. T. Law^†, Phys. Rev. Research 3, L032012 (2021).

7. Giant orbital magneto-electric effect and current-driven magnetization switching in twisted bilayer grpahene, W.-Y. He^†, David Goldhaber-Gordon, K. T. Law^†, Nat. Commun. 11, 1650 (2020).

8. Magnetoelectric effects in gyrotropic superconductors, W.-Y. He, and K. T. Law, Phys. Rev. Research 2, 012073 (R) (2020).

9. Transport evidence of asymmetric spin-orbit coupling in few-layer superconducting 1Td-MoTe₂, J. Cui^*, P. Li^*, J. Zhou^*, W.-Y. He^*, X. Huang, J. Yi, J. Fan, Z. Ji, X. Jing, F. Qu, Z. G. Cheng, C. Yang, L. Lu, K. Suenaga, J. Liu, K. T. Law, J. Lin, Z. Liu, G. Liu, Nat. Commun. 10, 2044 (2019).

10. Spinon Fermi Surface in a Cluster Mott Insulator Model on a Triangular Lattice and Possible Application to 1T-TaS₂, W.-Y. He, X. Y. Xu, G. Chen, K. T. Law, and P. A. Lee, Phys. Rev. Lett. 121, 046401 (2018).

11. Nodal topological superconductivity in monolayer NbSe₂, W.-Y. He, B. T. Zhou, J. J. He, N. F. Q. Yuan, T. Zhang, and K. T. Law, Communications Physics 1, 40 (2018). Editor’s pick.

12. An unusual continuous paramagnetic-limited superconducting phase transition in 2D NbSe₂, E. Sohn, X. Xi, W.-Y. He, S. Jiang, Z. Wang, K. Kang, J.-H. Park, H. Berger, L. Forro, K. T. Law, J. Shan, and K. F. Mak, Nat. Mater. 17, 504 (2018).

13. Synthetic gauge flux and Weyl points in acoustic systems, M. Xiao, W.-J. Chen, W.-Y. He, and C. T. Chan, Nat. Phys. 11, 920 (2015).

14. Chiral Tunneling in a Twisted Graphene Bilayer, W.-Y. He, Z.-D. Chu, and L. He, Phys. Rev. Lett. 111, 066803 (2013).

15. Strain and curvature induced evolution of electronic band structures in twisted graphene bilayer, W. Yan^*, W.-Y. He^*, Z.-D. Chu^*, M. Liu, L. Meng, R.-F. Dou, Y. Zhang, Z. Liu, J.-C. Nie, and L. He, Nat. Comm. 4, 2159 (2013).

Other Publications

16. Topological superconductivity in multifold fermion meetals, Z. S. Gao, X.-J. Gao, W.-Y. He, X. Y. Xu, T. K. Ng, and K. T. Law, Quantum Frontiers 1, 3 (2022).

17. Quantum oscillation of thermally activated conductivity in a monolayer WTe₂-like excitonic insulator, W.-Y. He and Patrick A. Lee, Phys. Rev. B 104, L041110 (2021).

18. Kramers Weyl semimetals as quantum solenoids and their applications in spin-orbit torque devices, W.-Y. He^†, Xiao Yan Xu, and K. T. Law^†, Commun. Phys. 4, 66 (2021).

19. Berry curvature-induced emerging magnetic response in two-dimensional materials, Y.-T. Liu, W.-Y. He, J.-W. Liu, and Q. M. Shao, Acta Physica Sinica 70 (12), 127303 (2021).

20. From nodal ring topological superfluids to spiral Majorana modes in cold atomic systems, W.-Y. He, D.-H. Xu, B. T. Zhou, Q. Zhou, and K. T. Law, Phys. Rev. A 97, 043618 (2018).

21. Superconductivity-induced ferromagnetism and Weyl superconductivity in Nb-doped Bi₂Se₃, N. F. Q. Yuan, W.-Y. He, and K. T. Law, Phys. Rev. B 95, 201109 (R) (2017).

22. Nematic topological superconducting phase in Nb-doped Bi₂Se₃, J. Shen, W.-Y. He, N. F. Q. Yuan, Z. Huang, C. Cho, S. H. Lee, Y. S. Hor, K. T. Law, and R. Lortz, npj Quantum Materials 2, 59 (2017).

23. Ising Superconductivity in Transition Metal Dichalcogenides, N. F. Q. Yuan, B. T. Zhou, W.-Y. He, and K. T. Law, AAPPSBL. 26, 3, 12 (2017).

24. The realization and detection of Weyl semimetals and chiral anomaly in cold atomic systems, W.-Y. He, S. Zhang, and K. T. Law, Phys. Rev. A 94, 013606 (2016).

25. A new platform for engineering topological superconductors: superlattices on Rashba superconductors, Y. Lu^*, W.-Y. He^*, D.-H. Xu, N. Lin, and K. T. Law, Phys. Rev. B 94, 024507 (2016).

26. The Emergence of Dirac points in Photonic Crystals with Mirror Symmetry, W.-Y. He, and C. T. Chan, Sci. Rep. 5, 8186 (2015).

27. Creating in-plane pseudomagnetic fields in excess of 1000T by misoriented stacking in a graphene bilayer, W.-Y. He, Y. Su, M. Yang, and L. He, Phys. Rev. B 89, 125418 (2014).

28. Coexistence of van Hove singularities and superlattice Dirac points in a slightly twisted graphene bilayer, Z.-D. Chu*, W.-Y. He*, and L. He, Phys. Rev. B 87, 155419 (2013).

29. Strain-induced one-dimensional Landau level quantization in corrugated graphene, L. Meng, W.-Y. He, H. Zheng, M. Liu, H. Yan, W. Yan, Z.-D. Chu, K. Bai, R.-F. Dou, Y. Zhang, Z. Liu, J.-C. Nie, and L. He, Phys. Rev. B 87, 205405 (2013).

30. Coupled spin and pseudomagnetic field in graphene nanoribbons, W.-Y. He, and L. He, Phys. Rev. B 88, 085411 (2013).

31. Ultrathin α-Fe₂O₃ Nanoribbons and Their Moire Patterns, R. Xu, H. Yan, W.-Y. He, Y. Su, J. C. Nie, and L. He, J. Phys. Chem. C, 116(12), (2012).

32. Effect of exchange-type zero-bias anomaly on single-electron tunneling of Au nanoparticles, R. Xu, Y. Sun, H. Yan, J.-Y. Yang, W.-Y. He, Y. Su, L. He, J.-C. Nie, and Y. Li, Phys. Rev. B 84, 195470 (2011).

Our first group photo on 2022.10.21! 

 We are recruiting. You are welcome to join us!