Chen Zhang

activity

20182026

most citedCharge Density Wave order and electron-phonon coupling in ternary superconductor Bi

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30 citations · 198 across the 23 of their papers we have counts for

collaborators

24 papers

cond-mat.str-el2026

Cleavage-History-Dependent Low-Temperature ARPES Spectra of Charge-Ordered EuAl $_{4}$

Hao Liu, Bo Chen, Chen Zhang +9

Charge ordering in EuAl $_{4}$ has been widely discussed in connection with band reconstruction, magnetism, and topological electronic states, yet the microscopic origin of the comple…

cond-mat.str-el2026

Ultrafast Fluence-Reversal Fingerprint of Fragile Kondo Hybridization in CePt $_{2}$ In $_{7}$

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…

cond-mat.str-el2026★ 1 cited

Electronic Nematicity Revealed by Polarized Ultrafast Spectroscopy in Bilayer La $_{3}$ Ni $_{2}$ O $_{7}$

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 La $_{3}$ Ni $_{2}$ O $_{7}$ and trilayer La $_{4}$ Ni $_{3}$ O $_{10}$ single crystals at ambient p…

cond-mat.str-el2025

Nonthermal melting and density wave instability coupled to the lattice in La $_{4}$ Ni $_{3}$ O $_{10}$

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…

cond-mat.str-el2025★ 4 cited

Ultrafast Stiffening of the Lattice Potential and Metastable State Formation in 1 $T$ -TiSe $_{2}$

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 $T$ -TiSe $_{2}$ across various temperatures and pum…

cond-mat.str-el2025

Ultrafast Optical Evidence of Coexisting Density Waves in Bilayer Nickelate La $_{3}$ Ni $_{2}$ O $_{7}$

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 La $_{3}$ Ni $_{2}$ O $_{7}$ . Our results rev…

cond-mat.str-el2025

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…

cond-mat.str-el2025

Anisotropic Hybridization Dynamics in the Quasi-One-Dimensional Kondo Lattice CeCo $_{2}$ Ga $_{8}$ 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 CeCo $_{2}$ Ga $_{8}$ using optical pump-probe spectroscopy. Time-resolved pump-probe reflectivity measure…

cond-mat.str-el2024★ 4 cited

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…

cond-mat.supr-con2024★ 3 cited

Interplay of electron-phonon coupling, pseudogap, and superconductivity in CsCa $_{2}$ Fe $_{4}$ As $_{4}$ F $_{2}$ studied using ultrafast optical spectroscopy

Qi-Yi Wu, Chen Zhang, Bai-Zhuo Li +9

The quasiparticle relaxation dynamics of the iron-based superconductor CsCa $_{2}$ Fe $_{4}$ As $_{4}$ F $_{2}$ ( $T_{c}$ $\sim$ 29 K) were investigated using ultrafast optical spectroscopy. A pseud…

cond-mat.str-el2024

Unveiling the 5 $f$ electron hybridization process in UPd $_{2}$ Al $_{3}$ via ARPES and Time-resolved PES

Jiao-Jiao Song, Qi-Yi Wu, Chen Zhang +15

This study investigates the 5 $f$ -electron-conduction electron hybridization process in the heavy fermion superconductor UPd $_{2}$ Al $_{3}$ using a combination of angle-resolved photoemi…

cond-mat.supr-con2024★ 15 cited

Exploring Fermi Surface Nesting and the Nature of Heavy Quasiparticles in the Spin-Triplet Superconductor Candidate CeRh $_{2}$ As $_{2}$

Bo Chen, Hao Liu, Qi-Yi Wu +15

In this study, we investigate the electronic structure of a spin-triplet superconductor candidate CeRh $_{2}$ As $_{2}$ using high-resolution angle-resolved photoemission spectroscopy and…

cond-mat.str-el2024★ 5 cited

Exploring Intrinsic Magnetic Topological Insulators: The Case of EuIn $_{2}$ As $_{2}$

Hao Liu, Qi-Yi Wu, Chen Zhang +10

In this study, ultrafast optical spectroscopy was employed to elucidate the intricate topological features of EuIn $_{2}$ As $_{2}$ , a promising candidate for a magnetic topological-cryst…

cond-mat.str-el2024★ 5 cited

Relocalization of Uranium 5f Electrons in Antiferromagnetic Heavy Fermion Superconductor UPd $_{2}$ Al $_{3}$ : Insights from Angle-Resolved Photoemission Spectroscopy

Jiao-Jiao Song, Chen Zhang, Qi-Yi Wu +15

We investigate the antiferromagnetic heavy fermion superconductor UPd $_{2}$ Al $_{3}$ , employing angle-resolved photoemission spectroscopy to unravel the complex electronic structure of…

cond-mat.str-el2023

Experimental observation of the significant difference between surface and bulk Kondo processes in Kondo lattice YbCu $_{2}$ Si $_{2}$

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…

cond-mat.supr-con2023★ 7 cited

The Hidden Nematic Fluctuations in the Triclinic (Ca0.85La0.15)10(Pt3As8)(Fe2As2)5 Superconductor Revealed by Ultrafast Optical Spectroscopy

Qi-Yi Wu, Chen Zhang, Ze-Zhong Li +13

We reported the quasiparticle relaxation dynamics of an optimally doped triclinic iron-based superconductor (Ca $_{0.85}$ La $_{0.15}$ ) $_{10}$ (Pt $_{3}$ As $_{8}$ )(Fe $_{2}$ As $_{2}$ ) $_{5}$ with bul…

cond-mat.str-el2023★ 8 cited

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…

cond-mat.str-el2022★ 9 cited

Coupling of optical phonons with Kondo effect and magnetic orders in antiferromagnetic Kondo lattice CeAuSb $_{2}$

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 $_{2}$ as a function of temperature and fluence.…

cond-mat.mtrl-sci2022★ 17 cited

Angle-resolved photoemission spectroscopy study of the charge density wave order in layered semiconductor EuTe4

Chen Zhang, Qi-Yi Wu, Ya-Hua Yuan +18

Layered tellurides have been extensively studied as a platform for investigating the Fermi surface (FS) nesting-driven charge density wave (CDW) states. EuTe4, one of quasi-two-dim…

cond-mat.supr-con2022★ 30 cited

Charge Density Wave order and electron-phonon coupling in ternary superconductor Bi $_{2}$ Rh $_{3}$ Se $_{2}$

Zi-Teng Liu, Chen Zhang, Qi-Yi Wu +19

The newly discovered ternary chalcogenide superconductor Bi $_{2}$ Rh $_{3}$ Se $_{2}$ has attracted growing attention, which provides an opportunity to explore the interplay between charge d…

cond-mat.supr-con2021★ 30 cited

Ultrafast Optical Spectroscopy Evidence of Pseudogap and Electron-Phonon Coupling in an Iron-Based Superconductor KCa $_{2}$ Fe $_{4}$ As $_{4}$ F $_{2}$

Chen Zhang, Qi-Yi Wu, Wen-Shan Hong +15

We use ultrafast optical spectroscopy to study the nonequilibrium quasiparticle relaxation dynamics of the iron-based superconductor KCa $_{2}$ Fe $_{4}$ As $_{4}$ F $_{2}$ with $T_{c} = 33.5$ K. Our…

cond-mat.mtrl-sci2020★ 20 cited

Dirac semimetal PdTe2 temperature-dependent quasiparticle dynamics and electron-phonon coupling

Shu-Yu Liu, Shuang-Xing Zhu, Qi-Yi Wu +15

Dirac semimetal PdTe2 single-crystal temperature-dependent ultrafast carrier and phonon dynamics were studied using ultrafast optical pump-probe spectroscopy. Two distinct carrier…

cond-mat.mtrl-sci2020★ 22 cited

Temperature evolution of quasiparticle dispersion dynamics in semimetallic 1T-TiTe2 via high-resolution angle-resolved photoemission spectroscopy and ultrafast optical pump-probe spectroscopy

Shuang-Xing Zhu, Chen Zhang, Qi-Yi Wu +18

High-resolution angle-resolved photoemission spectroscopy and ultrafast optical pump-probe spectroscopy were used to study semimetallic 1T - TiTe2 quasiparticle dispersion and dyna…

cond-mat.str-el2018★ 18 cited

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…

Cleavage-History-Dependent Low-Temperature ARPES Spectra of Charge-Ordered EuAl4​

Ultrafast Fluence-Reversal Fingerprint of Fragile Kondo Hybridization in CePt2​In7​

Electronic Nematicity Revealed by Polarized Ultrafast Spectroscopy in Bilayer La3​Ni2​O7​

Nonthermal melting and density wave instability coupled to the lattice in La4​Ni3​O10​

Ultrafast Stiffening of the Lattice Potential and Metastable State Formation in 1T-TiSe2​

Ultrafast Optical Evidence of Coexisting Density Waves in Bilayer Nickelate La3​Ni2​O7​

Unraveling Magneto-Phononic Coupling and Photoinduced Magnetic Control in Antiferromagnetic Kondo Semimetal CeBi

Anisotropic Hybridization Dynamics in the Quasi-One-Dimensional Kondo Lattice CeCo2​Ga8​ Revealed by Ultrafast Optical Spectroscopy

Ultrafast photoinduced phase transition in the antiferromagnetic Dirac semimetal EuAgAs

Interplay of electron-phonon coupling, pseudogap, and superconductivity in CsCa2​Fe4​As4​F2​ studied using ultrafast optical spectroscopy

Unveiling the 5f electron hybridization process in UPd2​Al3​ via ARPES and Time-resolved PES

Exploring Fermi Surface Nesting and the Nature of Heavy Quasiparticles in the Spin-Triplet Superconductor Candidate CeRh2​As2​

Exploring Intrinsic Magnetic Topological Insulators: The Case of EuIn2​As2​

Relocalization of Uranium 5f Electrons in Antiferromagnetic Heavy Fermion Superconductor UPd2​Al3​: Insights from Angle-Resolved Photoemission Spectroscopy

Experimental observation of the significant difference between surface and bulk Kondo processes in Kondo lattice YbCu2​Si2​

The Hidden Nematic Fluctuations in the Triclinic (Ca0.85La0.15)10(Pt3As8)(Fe2As2)5 Superconductor Revealed by Ultrafast Optical Spectroscopy

Itinerant to relocalized transition of f electrons in the Kondo insulator CeRu4Sn6

Coupling of optical phonons with Kondo effect and magnetic orders in antiferromagnetic Kondo lattice CeAuSb2​

Angle-resolved photoemission spectroscopy study of the charge density wave order in layered semiconductor EuTe4

Charge Density Wave order and electron-phonon coupling in ternary superconductor Bi2​Rh3​Se2​

Ultrafast Optical Spectroscopy Evidence of Pseudogap and Electron-Phonon Coupling in an Iron-Based Superconductor KCa2​Fe4​As4​F2​

Dirac semimetal PdTe2 temperature-dependent quasiparticle dynamics and electron-phonon coupling

Temperature evolution of quasiparticle dispersion dynamics in semimetallic 1T-TiTe2 via high-resolution angle-resolved photoemission spectroscopy and ultrafast optical pump-probe spectroscopy

Three-Dimensional Fermi-Surface and Electron-Phonon Coupling in Semimetallic 1T-TiTe2 studied by Angle-Resolved Photoemission Spectroscopy

Cleavage-History-Dependent Low-Temperature ARPES Spectra of Charge-Ordered EuAl $_{4}$

Ultrafast Fluence-Reversal Fingerprint of Fragile Kondo Hybridization in CePt $_{2}$ In $_{7}$

Electronic Nematicity Revealed by Polarized Ultrafast Spectroscopy in Bilayer La $_{3}$ Ni $_{2}$ O $_{7}$

Nonthermal melting and density wave instability coupled to the lattice in La $_{4}$ Ni $_{3}$ O $_{10}$

Ultrafast Stiffening of the Lattice Potential and Metastable State Formation in 1 $T$ -TiSe $_{2}$

Ultrafast Optical Evidence of Coexisting Density Waves in Bilayer Nickelate La $_{3}$ Ni $_{2}$ O $_{7}$

Anisotropic Hybridization Dynamics in the Quasi-One-Dimensional Kondo Lattice CeCo $_{2}$ Ga $_{8}$ Revealed by Ultrafast Optical Spectroscopy

Interplay of electron-phonon coupling, pseudogap, and superconductivity in CsCa $_{2}$ Fe $_{4}$ As $_{4}$ F $_{2}$ studied using ultrafast optical spectroscopy

Unveiling the 5 $f$ electron hybridization process in UPd $_{2}$ Al $_{3}$ via ARPES and Time-resolved PES

Exploring Fermi Surface Nesting and the Nature of Heavy Quasiparticles in the Spin-Triplet Superconductor Candidate CeRh $_{2}$ As $_{2}$

Exploring Intrinsic Magnetic Topological Insulators: The Case of EuIn $_{2}$ As $_{2}$

Relocalization of Uranium 5f Electrons in Antiferromagnetic Heavy Fermion Superconductor UPd $_{2}$ Al $_{3}$ : Insights from Angle-Resolved Photoemission Spectroscopy

Experimental observation of the significant difference between surface and bulk Kondo processes in Kondo lattice YbCu $_{2}$ Si $_{2}$

Coupling of optical phonons with Kondo effect and magnetic orders in antiferromagnetic Kondo lattice CeAuSb $_{2}$

Charge Density Wave order and electron-phonon coupling in ternary superconductor Bi $_{2}$ Rh $_{3}$ Se $_{2}$

Ultrafast Optical Spectroscopy Evidence of Pseudogap and Electron-Phonon Coupling in an Iron-Based Superconductor KCa $_{2}$ Fe $_{4}$ As $_{4}$ F $_{2}$