Quantum Materials & Devices

Quantum materials constitute a research field characterized by high manipulation degrees of freedom and diverse physical properties. These materials leverage fundamental elements, such as spin, lattice, orbital, and charge interactions, along with unique topologies, to manifest a wide range of quantum phenomena and potential applications. These promising functionalities span across various domains, encompassing electricity, optics, heat, mechanics, magnetism and so on. Our research focuses on several key aspects within the realm of quantum materials. We emphasize theoretical predictions and the understanding of novel quantum materials. We explore methods for growing these cutting-edge quantum materials. Additionally, we conduct in-depth analyses of quantum transport behaviors. Our foundation rests upon state-of-the-art quantum materials and nanodevices. Through our endeavors, we aim to foster a dynamic research community dedicated to the development of quantum materials.

Our short-term goals involve thorough theoretical prediction upon the electronic features and correlated phenomena for a variety of two-dimensional quantum materials, low-dimensional oxide quantum systems, low-dimensional high-temperature superconducting materials, and topological materials. In the medium term, we plan to integrate a versatile platform for rapid growth and characterization of quantum materials, along with cutting-edge nano-fabrication processes. This will enable us to develop complex quantum systems, manipulate intriguing transport properties, and explore potential new avenues in novel quantum materials, thereby establishing a solid foundation for rapid advancements in novel materials and the measurement of emerging quantum phenomena. Subsequently, our focus will shift to observing and manipulating unconventional emergent phenomena, particularly emphasizing novel quantum transport effects such as non-traditional Hall effects, tunable superconductivity, and more. In the long term, we aim to achieve large-scale industrialization, extending the boundaries of basic scientific research and making functional quantum systems accessible beyond the realm of fundamental science.

Examples of Research Directions or Outcomes

Emergence of Hexagonal Cyclotron Motion in Graphene Superlattices

Electrons moving in a plane under the influence of a perpendicular magnetic field is known to exhibit the so-called cyclotron motion described by circular orbitals due to circular Fermi contour tha...

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Gate-free Monolayer WSe2 pn Diode

By utilizing a locally reversed ferroelectric polarization, we laterally manipulate the carrier density and created a WSe2 pn homojunction on the supporting ferroelectric BiFeO3 substrate. This non...

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All-Electric Spin Transistor

The spin field-effect transistor envisioned by Datta and Das opens a gateway to spin information processing. Although the coherent manipulation of electron spins in semiconductors is now possible, ...

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Examples of Research Directions or Outcomes