Yao Group @ HKU Physics


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Welcome to Yao group

We are a theoretical group working in interdisciplinary area across condensed matter physics, quantum physics, and optical physics. Our current research interest is on quantum spintronics, and valley and spin phenomena in atomically thin two-dimensional materials and their heterostructures.

We have postdoc and PhD positions open.


Recent papers

Interlayer excitons

Moire excitons: from programmable quantum emitter arrays to spin-orbit coupled artificial lattices,

H. Yu, G. Liu, J. Tang, X. Xu & W. Yao*

Science Advances 3, e1701696 (2017). (Link)


Signatures of moiré-trapped valley excitons in MoSe2/WSe2 heterobilayers,

K. Seyler, P. Rivera, H. Yu, N. Wilson, E. Ray, D. Mandrus, J. Yan, W. Yao*, X. Xu*

To appear in Nature, https://arxiv.org/abs/1809.04562


Interlayer valley excitons in heterobilayers of transition metal dichalcogenides,

P. Rivera, H. Yu, K. Seyler, N. Wilson, W. Yao, X. Xu,

Nature Nano. 13, 1004 (2018). (Link).

Review article


van der Waals 2D magnets

Skyrmions in the moiré of van der Waals 2D magnets,

Q. Tong, F. Liu, J. Xiao & W. Yao*,

Nano Letters 18, 7194(2018). (Link)


Giant Tunneling Magnetoresistance in Spin-Filter van der Waals Heterostructures,

T. Song, X. Cai, M.W-Y. Tu, X. Zhang, B. Huang, N. Wilson, K. Seyler, L. Zhu, T. Taniguchi, K. Watanabe, M. McGuire, D. Cobden, D. Xiao*, W. Yao*, X. Xu*,

Science 360, 1214 (2018). (Link)


Topological phases in vdW heterostructures

Topological Mosaic in Moiré superlattices of van der Waals heterobilayers,

Q. Tong, H. Yu, Q. Zhu, Y. Wang, X. Xu & W. Yao*,

Nature Physics 13, 356 (2017). — (Link)


Gate tuning from exciton superfluid to quantum anomalous Hall in van der Waals heterobilayer,

Q. Zhu, M.W-Y. Tu, Q. Tong & W. Yao*,

To appear in Science Advances




The University of Hong Kong
Department of Physics
Pokfulam Road
Hong Kong
Tel: + 852-2219-4809
Fax: + 852-2559-9152