C-paired spin-valley locking in antiferromagnet:
- A new type of SVL that can realize many interesting and useful properties that were believed impossible in old theory. Nat. Commun. 12, 2846 (2021)
- Propose and demonstrate the C-paired SVL in AFM systems
- Can realize giant piezomagnetism and generate noncollinear spin current
- Various new approaches to control spin, valley and other degree of freedoms
Topological crystalline insulators:
- Predicted SnTe-type of 3D TCIs, which is the first 3D TCIs confirmed by experiments. Nat. Commun. 3, 982 (2012)
- Systematically studied novel surface states of 3D TCIs and experimentally observed them. PRB 88, 241303(R) (2013); PRL 112, 186801 (2014)
- Proposed 2D TCIs and predicted its existences and quickly was confirmed in experiments. Nat. Mater. 13, 178-183 (2014)
Quantum spin Hall effect:
- Predicted that quantum spin Hall effect could be realized in WTe2-type 2D materials for the first time
- The realization temperature (~100K) is much higher than all the previous systems (~30 mK)
Self-learning Monte Carlo methods:
- A generic global update method that can dramatically accelerate calculations in both classical and quantum models
All-optical deep neural networks:
- World-first all-optical deep neural network with non-collinear activation functionsOptica 6, 1132 (2019) Phys. Rev. App. 15, 054034 (2021)