Guorui Chen

Professor Guorui Chen has been working on the experimental study of novel electronic properties of two-dimensional materials by fabricating nano-electronic devices and measuring quantum transport at low temperatures. He designed a talented multitasking electronic device for the advancement of strongly correlated physics and quantum science. 

Prof. Chen's discoveries lead to a new research field named "Moiré Flatband" and enlightened the 2D materials as ideal platforms to study and unravel the mysteries in strongly correlated physics, high-temperature superconductivity, and topological physics. 

He designed a talented multitasking electronic device for the advancement of strongly correlated physics and quantum science. The device named ABCtrilayer graphene/hBN moiré superlattice is composed of three-layered graphene and a few-layered boron nitride. When precisely controled, the twisted angle between graphene and boron nitride close to zero and they form a repeating pattern called a moiré superlattice, which efficiently modifies the electronic properties of graphene. Prof. Chen found that one single device conveniently changes from metal to Mott insulator, superconductor, magnet, and topological Chern insulator by simply applying the electrical voltages, which is the first real system that can simultaneously control the doping and correlation strength, leading to a perfect platform for studying the mysteries of strongly correlated physics. 

At the same time, new discoveries keep coming out from the same device, which might be the first device with such rich quantum phases. Prof. Chen's series of discoveries changed people's understanding of graphene from a "simple" carbon material to a "complex" quantum material with rich quantum phases including strong electron-electron interactions, superconductivity, ferromagnetism, and topological properties.