Our specialized fields include condensed matter theory, theoretical nanoscience, computational materials science, quantum transport, optical properties of materials, and topological physics. Target systems include transition-metal dichalcogenides and other two-dimensional quantum materials, including graphene, van der Waals heterostructures, moiré superlattices, molecular and coordination nanosheets, topological materials, photonic crystals, and quantum-device interfaces. A central question of our research is how structure and symmetry can be designed to create new functions in quantum materials. We investigate edge states, interface states, spin-orbit coupling, valley degrees of freedom, Berry curvature, nonequilibrium carrier distributions, moiré superlattices, defects, and disorder, aiming to bridge fundamental physics and device-oriented materials design.

[ About Quantum Materials Design Group]

The Quantum Materials Design Group aims to understand the quantum nature of electrons, spins, valleys, and light in materials, and to translate this understanding into design principles for new functional materials and quantum devices. Our research focuses on two-dimensional materials, topological materials, nanostructured systems, and photonic crystals, with particular attention to how atomic-scale structures, symmetry, interfaces, defects, and external fields generate electronic, transport, and optical functionalities.
We combine first-principles calculations, tight-binding models, quantum transport theory, optical response theory, and data-driven analysis. Through close collaboration with experimental researchers, we clarify the physical mechanisms behind observed phenomena and feed the resulting insights back into materials and device design. Based on the concept of materials nanoarchitectonics, we seek to open new frontiers in low-dimensional quantum materials.