Research

Angle resolved photoemission spectroscopy (ARPES )

 Our laboratory utilizes Angle-Resolved Photoemission Spectroscopy (ARPES) to directly visualize and investigate the electronic structures of quantum materials. To carry out these experiments, our group visits to synchrotron radiation facilities around the world. In parallel, we are building a new 2D laser ARPES system in-house, which will enable high-resolution, laboratory-based measurements with greater accessibility and experimental flexibility.

Low dimensional material

-Quasi-1D materials
  Quasi-1D materials, featuring chain-like crystal structures aligned along a single axis, serve as ideal platforms for exploring quantum interactions. This unique dimensionality gives rise to fascinating physical states, such as charge density waves (CDW) , and spin-charge separation (SCS), where strong 1D electron interactions break Fermi liquid theory in favor of Luttinger liquid behavior.

-Transition metal dichalcogenide (TMDC) materials

 Transition metal dichacogenide(TMDC) heterostructures, featuring artificially stacked or naturally alternating layers with distinct electronic properties, serve as ideal platforms for exploring interfacial quantum interactions. This unique structural asymmetry gives rise to fascinating physical states, such as layer-specific charge density waves (CDW) and proximity-induced phases, where work function mismatches and interlayer charge transfer drive phenomena like Mott gap melting and Kondo coherence. 

Machine learning 

 We are developing deep learning-based methods to enhance the effective energy resolution of ARPES data, particularly along the energy axis. By learning the relationship between high- and low-resolution data, our models aim to reconstruct finer electronic structures from experimentally accessible measurements.