298 citations · 573 across the 13 of their papers we have counts for
13 papers
Decoupled interband pairing in a bilayer iron-based superconductor evidenced by ultrahigh-resolution ARPES
Shichong Wang, Yuanyuan Yang, Yang Li +11
We present direct experimental evidence of a weakly coupled multiband superconducting state in the bilayer iron-based superconductor ACaFeAsF (A = K, Cs) via ultrah…
Fluctuated lattice-driven charge density wave far above the condensation temperature in kagome superconductor KVSb
Haoran Liu, Shaofeng Duan, Xiangqi Liu +9
The kagome material AVSb exhibits multiple exotic orders, including an unconventional charge density wave (CDW). Elucidating the underlying mechanism behind the CDW transit…
Identification of metastable lattice distortion free charge density wave at photoinduced interface via TRARPES
Shaofeng Duan, Binshuo Zhang, Zihao Wang +8
The interplay between different degrees of freedom governs the emergence of correlated electronic states in quantum materials, with charge density waves (CDW) often coexisting with…
Optical manipulation of the topological phase in ZrTe5 revealed by time- and angle-resolved photoemission
Chaozhi Huang, Chengyang Xu, Fengfeng Zhu +8
High-resolution time- and angle-resolved photoemission measurements were conducted on the topological insulator ZrTe5. With strong femtosecond photoexcitation, a possible ultrafast…
Ultrafast Switching from the Charge Density Wave Phase to a Metastable Metallic State in 1T-TiSe
Shaofeng Duan, Wei Xia, Chaozhi Huang +7
The ultrafast electronic structures of the charge density wave material 1T-TiSe were investigated by high-resolution time- and angle-resolved photoemission spectroscopy. We fou…
A sample-position-autocorrection system with precision better than 1 \um~in angle-resolved photoemission experiments
Shaofeng Duan, Shichong Wang, Yuanyuan Yang +4
We present the development of a high-precision sample-position-autocorrection system for photoemission experiments. A binocular vision method based on image pattern matching calcul…
Anomalous contribution to the nematic electronic states from the structural transition in FeSe revealed by time- and angle-resolved photoemission spectroscopy
Yuanyuan Yang, Qisi Wang, Shaofeng Duan +8
High-resolution time- and angle-resolved photoemission measurements were made on FeSe superconductors. With ultrafast photoexcitation, two critical excitation fluences that corresp…
Unusual band splitting and superconducting gap evolution with sulfur substitution in FeSe
Yuanyuan Yang, Qisi Wang, Shaofeng Duan +7
High-resolution angle-resolved photoemission measurements were taken on FeSeS (x=0, 0.04, and 0.08) superconductors. With an ultrahigh energy resolution of 0.4 meV, unu…
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…
A time- and angle-resolved photoemission spectroscopy with probe photon energy up to 6.7 eV
Yuanyuan Yang, Tianwei Tang, Shaofeng Duan +3
We present the development of a time- and angle-resolved photoemission spectroscopy based on a Yb-based femtosecond laser and a hemispherical electron analyzer. The energy of the p…
Non-Coulomb strong electron-hole binding in revealed by time- and angle-resolved photoemission spectroscopy
Tangwei Tang, Hongyuan Wang, Shafeng Duan +5
We reveal an ultrafast purely electronic phase transition in \TNS, which is a plausible excitonic insulator, after excited by an ultrafast infrared laser pulse. Specifically, the o…
Dirac surface states in intrinsic magnetic topological insulators EuSn2As2 and MnBi2nTe3n+1
Hang Li, Shun-Ye Gao, Shao-Feng Duan +24
In magnetic topological insulators (TIs), the interplay between magnetic order and nontrivial topology can induce fascinating topological quantum phenomena, such as the quantum ano…