6 papers
Ultrafast Optical Evidence of Coexisting Density Waves in Bilayer Nickelate LaNiO
Qi-Yi Wu, De-Yuan Hu, Chen Zhang +13
Utilizing ultrafast optical pump-probe spectroscopy, we investigate the coexistence and competition of electronic orders in the bilayer nickelate LaNiO. Our results rev…
Unraveling Magneto-Phononic Coupling and Photoinduced Magnetic Control in Antiferromagnetic Kondo Semimetal CeBi
Xu-Chen Nie, Chen Zhang, Qi-Yi Wu +9
We report an ultrafast optical spectroscopy study on the coherent phonon dynamics in the topological semimetal CeBi and its nonmagnetic isostructural compound LaBi, revealing profo…
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…
Anisotropic Hybridization Dynamics in the Quasi-One-Dimensional Kondo Lattice CeCoGa Revealed by Ultrafast Optical Spectroscopy
Ba-Lei Tan, Chen Zhang, Qi-Yi Wu +10
We investigate the ultrafast dynamics of the quasi-one-dimensional Kondo lattice CeCoGa using optical pump-probe spectroscopy. Time-resolved pump-probe reflectivity measure…
Interplay of electron-phonon coupling, pseudogap, and superconductivity in CsCaFeAsF studied using ultrafast optical spectroscopy
Qi-Yi Wu, Chen Zhang, Bai-Zhuo Li +9
The quasiparticle relaxation dynamics of the iron-based superconductor CsCaFeAsF ( 29 K) were investigated using ultrafast optical spectroscopy. A pseud…
Three-Dimensional Fermi-Surface and Electron-Phonon Coupling in Semimetallic 1T-TiTe2 studied by Angle-Resolved Photoemission Spectroscopy
Xiao-Fang Tang, Yu-Xia Duan, Fan-Ying Wu +10
We present an investigation on electronic structure of 1T-TiTe2 material via high-resolution angle-resolved photoemission spectroscopy (ARPES), utilizing tunable photon energy exci…