Excitonic insulators exhibit intriguing quantum phases that further attract numerous interests in engineering the electrical and optical properties of Ta2NiSe5. However, tuning electronic such as spin-orbit coupling strength orbital repulsion via pressure Ta2NiSe5 are always accompanied with electron-hole pair breaking, which is a bottleneck for applications. Here, robust excitonic-insulating s...

Nonvolatile resistive switching is one of the key phenomena for emerging applications in optoelectronics and neuromorphic computing. In most cases, an electric field applied to a two terminal dielectric material device leads formation low resistance filament due ion migration. However, stochastic nature migration can be impediment robustness controllability, with uncontrolled variations high st...