RESEARCH

two-dimensional materials:

2D materials/Devices

Atomically thin sheets of 2D crystals exhibit entirely different properties than their 3D counterparts. We are interested in devices based on 2D materials, with outstanding electronic and optical properties for practical applications. Besides, their atomically flat surface and Van der Waals nature make it possible to stack them together and form heterostructures under excellent control. With the free choice of sheet materials, ranging from insulators, semiconductors to superconductors, those new materials, Van der Waals heterostructures reveal unprecedented properties (e.g. ultra-small leakage, exotic insulator. We explore electronic devices based on heterostructures and solve challenges in nanotechnologies.

Information technology and quantum material

Fast-growing data-driven society drives information technology development, aiming for better efficiency, faster operation speed, and safer transportation. Quantum materials with exotic orders exhibit great potential by providing ultra-stable and high-efficient information carriers. For example, low dimensionality in layered quantum materials tampers down the screening effect and enables metal-to-insulator, topological and superconducting transitions. Accordingly, large and robust contrast arises from those various electronic orderings. We are interested in engineering and optimizing nano-devices based on interesting orders such as domain walls, filaments and defects and exploration of their potentials for information technologies.

Multi-dimensional characterization

To address challenges in creating, understanding, and utilizing emergent quantum phenomena at the device level, we employ and develop a series of experimental tools, covering from fabrication to characterization. In each device, quantum states’ properties can be manipulated and controlled by electronic way  in a platform coupled with various extreme conditions such as cryogenic temperature, high magnetic field, and high pressure. Such a platform is promising to bridge the gap between fundamental physics and real-world applications.