报告人简介：
Wen-Yu He is a tenure-track assistant professor in the School of Physical Science and Technology at ShanghaiTech University. He earned his B. S. in physics from Beijing Normal University in 2013 and his Ph. D. from the Hong Kong University of Science and Technology (HKUST) in 2018. After graduation, he worked as a postdoctoral fellow in the Department of Physics at HKUST for 2 years. Then he moved to Massachusetts Institute of Technology (MIT) and worked with Patrick A. Lee as a postdoctoral associate in the Department of Physics from 2020 to 2022. In April 2022, he joined ShanghaiTech University as an assistant professor. His research focused on studying topological states, superconductivity and strongly correlated phenomenon. His group are actively engaged with experimentalists to explore new physical states in 2D quantum materials and provide interpretations to new experimental observations there.
讲座摘要：
2D quantum materials, with their high tunability, serve as versatile platforms for investigating topological states, strongly correlated phenomena and unconventional superconductivity. In this talk, I will present our recent theoretical works across all the three frontiers in the platform of 2D quantum materials. 1) Quantum spin liquid physics. I will briefly review the story of the quantum spin liquid physics in the family of 1T transition metal dichalcogenides (1T-TaS2, 1T-TaSe2, and 1T-NbSe2). I will then demonstrate that by applying a magnetic field, the hidden neutral Fermi surface in the spin liquid can be Landau quantized and the Landau quantization can be identified through measuring the local electronic density of states. 2) Topological superconductivity. I will discuss about our recent proposal of topological superconductivity in monolayer 1Td-MoTe2. We show that applying an in-plane magnetic field can drive the superconducting monolayer 1Td-MoTe2 into a topological superconductor. 3) Nonlinear Hall effect. We reveal the intrinsic orbital magnetization origin of the nonlinear Hall effect and predict a new type of nonlinear Hall response in insulators. We will show that the nonlinear Hall response is intrinsically connected to the breakdown of the Kleinman symmetry in nonlinear optics.
主持人：张广铭
Wen-Yu He is a tenure-track assistant professor in the School of Physical Science and Technology at ShanghaiTech University. He earned his B. S. in physics from Beijing Normal University in 2013 and his Ph. D. from the Hong Kong University of Science and Technology (HKUST) in 2018. After graduation, he worked as a postdoctoral fellow in the Department of Physics at HKUST for 2 years. Then he moved to Massachusetts Institute of Technology (MIT) and worked with Patrick A. Lee as a postdoctoral associate in the Department of Physics from 2020 to 2022. In April 2022, he joined ShanghaiTech University as an assistant professor. His research focused on studying topological states, superconductivity and strongly correlated phenomenon. His group are actively engaged with experimentalists to explore new physical states in 2D quantum materials and provide interpretations to new experimental observations there.
讲座摘要：
2D quantum materials, with their high tunability, serve as versatile platforms for investigating topological states, strongly correlated phenomena and unconventional superconductivity. In this talk, I will present our recent theoretical works across all the three frontiers in the platform of 2D quantum materials. 1) Quantum spin liquid physics. I will briefly review the story of the quantum spin liquid physics in the family of 1T transition metal dichalcogenides (1T-TaS2, 1T-TaSe2, and 1T-NbSe2). I will then demonstrate that by applying a magnetic field, the hidden neutral Fermi surface in the spin liquid can be Landau quantized and the Landau quantization can be identified through measuring the local electronic density of states. 2) Topological superconductivity. I will discuss about our recent proposal of topological superconductivity in monolayer 1Td-MoTe2. We show that applying an in-plane magnetic field can drive the superconducting monolayer 1Td-MoTe2 into a topological superconductor. 3) Nonlinear Hall effect. We reveal the intrinsic orbital magnetization origin of the nonlinear Hall effect and predict a new type of nonlinear Hall response in insulators. We will show that the nonlinear Hall response is intrinsically connected to the breakdown of the Kleinman symmetry in nonlinear optics.
主持人：张广铭
沪公网安备 31011502006855号