124 citations · 365 across the 12 of their papers we have counts for
12 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…
Structural contribution to light-induced gap suppression in TaNiSe
Zijing Chen, Chenhang Xu, Chendi Xie +13
An excitonic insulator is a material that hosts an exotic ground state, where an energy gap opens due to spontaneous condensation of bound electron-hole pairs. TaNiSe is a…
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…
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…
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…
Dissipative Edge Transport in Disordered Axion Insulator Films
Zhaochen Liu, Dongheng Qian, Yadong Jiang +1
We investigate the role of disorder in the edge transport of axion insulator films. We predict by first-principles calculations that even-number-layer MnBiTe have gapped he…
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…
Achieving 50 femtosecond resolution in MeV ultrafast electron diffraction with a double bend achromat compressor
Fengfeng Qi, Zhuoran Ma, Lingrong Zhao +12
We propose and demonstrate a novel scheme to produce ultrashort and ultrastable MeV electron beam. In this scheme, the electron beam produced in a photocathode radio-frequency (rf)…
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…