4 papers
High-energy electronic excitations in La3Ni2O7 by time-resolved optical spectroscopy
Junzhi Zhu, Mengwu Huo, Yubin Wang +11
Recently, high-temperature superconductivity has been established in bilayer La3Ni2O7, which exhibits a density-wave (DW) transition at ~ 150 K under ambient pressure. The DW order…
Low-frequency interlayer phonon dynamics and photoinduced terahertz absorption in black phosphorus
Haiyun Huang, Cheng Chen, Yuxin Zhai +6
The strong interlayer coupling in black phosphorus (BP), arising from wavefunction overlap between layers, is critical for understanding its electronic and optical properties. Here…
Ultrafast charge-transfer dynamics in CaCuOCl from time-resolved optical reflectivity
Haiyun Huang, Xiu Zhang, Junzhi Zhu +7
We employ time-resolved optical reflectivity to investigate the ultrafast dynamics of the charge-transfer gap (CTG) in a parent cuprate compound CaCuOCl (CCOC). We obse…
Ultrafast Chirality-dependent Dynamics from Helicity-resolved Transient Absorption Spectroscopy
Xiu Zhang, Lu Zhang, Junzhi Zhu +5
Chirality, a pervasive phenomenon in nature, is widely studied across diverse fields including the origins of life, chemical catalysis, drug discovery, and physical optoelectronics…