30 citations · 198 across the 23 of their papers we have counts for
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Cleavage-History-Dependent Low-Temperature ARPES Spectra of Charge-Ordered EuAl
Hao Liu, Bo Chen, Chen Zhang +9
Charge ordering in EuAl has been widely discussed in connection with band reconstruction, magnetism, and topological electronic states, yet the microscopic origin of the comple…
Ultrafast Fluence-Reversal Fingerprint of Fragile Kondo Hybridization in CePtIn
Xin-Yi Tian, Qi-Yi Wu, Chen Zhang +13
The emergence of heavy quasiparticles in a Kondo lattice is usually viewed as the formation of a low-energy hybridization gap. Whether this gap represents a rigid electronic struct…
Electronic Nematicity Revealed by Polarized Ultrafast Spectroscopy in Bilayer LaNiO
Qi-Yi Wu, De-Yuan Hu, Chen Zhang +14
We report a polarized ultrafast pump-probe study of the normal-state electronic dynamics in bilayer LaNiO and trilayer LaNiO single crystals at ambient p…
Nonthermal melting and density wave instability coupled to the lattice in LaNiO
Chen Zhang, Lixing Chen, Qi-Yi Wu +15
The recent discovery of high-temperature superconductivity in pressurized nickelates has renewed interest in the broken-symmetry states of their ambient-pressure parent phases, whe…
Ultrafast Stiffening of the Lattice Potential and Metastable State Formation in 1-TiSe
Xue-Qing Ye, Hao Liu, Qi-Yi Wu +8
We use ultrafast optical spectroscopy to investigate the electronic and lattice dynamics of the charge-density wave (CDW) material 1-TiSe across various temperatures and pum…
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…
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…
Ultrafast photoinduced phase transition in the antiferromagnetic Dirac semimetal EuAgAs
Hao Liu, Chen Zhang, Qi-Yi Wu +12
We report the observation of a light-induced subpicosecond phase transition in the antiferromagnetic Dirac semimetal EuAgAs, achieved through ultrafast optical excitation. Using ul…
Unveiling the 5 electron hybridization process in UPdAl via ARPES and Time-resolved PES
Jiao-Jiao Song, Qi-Yi Wu, Chen Zhang +15
This study investigates the 5-electron-conduction electron hybridization process in the heavy fermion superconductor UPdAl using a combination of angle-resolved photoemi…
Exploring Intrinsic Magnetic Topological Insulators: The Case of EuInAs
Hao Liu, Qi-Yi Wu, Chen Zhang +10
In this study, ultrafast optical spectroscopy was employed to elucidate the intricate topological features of EuInAs, a promising candidate for a magnetic topological-cryst…
Relocalization of Uranium 5f Electrons in Antiferromagnetic Heavy Fermion Superconductor UPdAl: Insights from Angle-Resolved Photoemission Spectroscopy
Jiao-Jiao Song, Chen Zhang, Qi-Yi Wu +15
We investigate the antiferromagnetic heavy fermion superconductor UPdAl, employing angle-resolved photoemission spectroscopy to unravel the complex electronic structure of…
Experimental observation of the significant difference between surface and bulk Kondo processes in Kondo lattice YbCuSi
in-Zou Zhao, Jiao-Jiao Song, Qi-Yi Wu +11
Synchrotron-based angle-resolved photoemission spectroscopy was employed to investigate the temperature evolution of the Yb 4f spectral for surface and bulk in the Kondo lattice Yb…
Itinerant to relocalized transition of f electrons in the Kondo insulator CeRu4Sn6
Fan-Ying Wu, Qi-Yi Wu, Chen Zhang +14
The three-dimensional electronic structure and the nature of Ce 4f electrons of the Kondo insulator CeRu4Sn6 are investigated by angle-resolved photoemission spectroscopy, utilizin…
Coupling of optical phonons with Kondo effect and magnetic orders in antiferromagnetic Kondo lattice CeAuSb
Yin-Zou Zhao, Qi-Yi Wu, Chen Zhang +14
Ultrafast optical spectroscopy was used to investigate the ultrafast quasiparticle dynamics of antiferromagnetic Kondo lattice CeAuSb as a function of temperature and fluence.…
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…