The research team of the Hong Kong University of Science and Technology (HKUST) has recently made important progress in the field of new materials. Combining the characteristics of two-dimensional materials and topological materials, the team has for the first time discovered a universal generation mechanism of new materials with "type-II" Dirac cones. Many extraordinary properties of the material are realized in experiments, which addressed the key issue that the material could only be obtained sporadically under stringent limits. This mechanism can guide the preparation of new two-dimensional materials that have specific directional responses to external signals such as electric fields, magnetic fields, light waves, sound waves, etc. and will provide valuable applications for modern electronic communications, quantum computing, optical communications and even sound insulation and noise reduction materials. Read More...

Prof. WEN Weijia (right) and Dr. WU Xiaoxiao present the experimental samples used to observe "type-II" Dirac cones.