124 citations · 364 across the 5 of their papers we have counts for
5 papers
Ultrafast formation of topological defects in a 2D charge density wave
Yun Cheng, Alfred Zong, Lijun Wu +13
Topological defects play a key role in nonequilibrium phase transitions, ranging from birth of the early universe to quantum critical behavior of ultracold atoms. In solids, transi…
Transient dynamics of the phase transition in VO2 revealed by mega electron-volt ultrafast electron diffraction
Chenhang Xu, Cheng Jin, Zijing Chen +9
Vanadium dioxide (VO2) exhibits an insulator-to-metal transition accompanied by a structural transition near room temperature. This transition can be triggered by an ultrafast lase…
Light-induced dimension crossover in 1T-TiSe dictated by excitonic correlations
Yun Cheng, Alfred Zong, Jun Li +18
In low-dimensional systems with strong electronic correlations, the application of an ultrashort laser pulse often yields novel phases that are otherwise inaccessible. The central…
Optical manipulation of electronic dimensionality in a quantum material
Shaofeng Duan, Yun Cheng, Wei Xia +9
Exotic phenomenon can be achieved in quantum materials by confining electronic states into two dimensions. For example, relativistic fermions are realised in a single layer of carb…
Achieving 50 femtosecond resolution in MeV ultrafast electron diffraction with a double bend achromat compressor
Fengfeng Qi, Zhuoran Ma, Lingrong Zhao +12
We propose and demonstrate a novel scheme to produce ultrashort and ultrastable MeV electron beam. In this scheme, the electron beam produced in a photocathode radio-frequency (rf)…