Quasiparticles and excitons: We use large-scale first-principles many-body simulations to understand electron excitation energies, excitons, and optical spectra in emerging two-dimensional materials, including graphene, transition-metal dichalcogenides (TMDs), and magnetic semiconductors.
Moiré structures and tunability: We explore how twisting layers of the same or different materials reshapes quasiparticles and excitons, and how electric fields and strain can tune their properties.
Nonlinear light–matter interactions: We investigate how 2D materials with unique symmetries convert light into new frequencies and generate charge or spin currents, focusing on second-harmonic generation (SHG), photogalvanic effects, and spin photogalvanic effects.
Two-dimensional ferroelectrics: We explore emerging van der Waals materials with stable, switchable electric polarization.
Two-dimensional magnets: We investigate ferromagnets, antiferromagnets, and altermagnets, focusing on how atomic structure and symmetry shape their magnetic and electronic properties.
Multiferroic heterostructures: We design layered structures with enhanced coupling between electric polarization and magnetism, aiming to control magnetic states using electric fields.
Database for band alignment and charge transfer of vdW materials and bulk Ferroelectric materials (DMREF)
Topological flat bands in spin–orbit-coupled materials: We explore platforms beyond graphene and TMDs, focusing on twisted 2D structures with type-II Rashba and Dresselhaus spin–orbit coupling. Our goal is to create topological flat bands that provide a platform for interaction-driven quantum phases.
Topology in unconventional magnets: We search for new topological phenomena in materials with unconventional magnetic order, including altermagnets, and investigate how magnetic order and symmetry shape their electronic topology.