550 citations · 11.2k across the 244 of their papers we have counts for
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Temperature dependent anisotropy and two-band superconductivity revealed by lower critical field in organic superconductor -(BEDT-TTF)Cu[N(CN)]Br
Huijing Mu, Jin Si, Qingui Yang +3
Resistivity and magnetization have been measured at different temperatures and magnetic fields in organic superconductors -(BEDT-TTF)Cu[N(CN)]Br. The lower critical…
Strengthened proximity effect at grain boundaries to enhance inter-grain supercurrent in Ba1-xKxFe2As2 superconductors
Zhe Cheng, Chiheng Dong, Huan Yang +5
Iron-based superconductors have great potential for high-power applications due to their prominent high-field properties. One of the central issues in enhancing the critical curren…
Electronic Correlations and Evolution of the Charge-Density Wave in the Kagome Metals VSb ( = K, Rb, Cs)
Xiaoxiang Zhou, Yongkai Li, Xinwei Fan +7
The kagome metals VSb ( = K, Rb, Cs) have attracted enormous interest as they exhibit intertwined charge-density wave (CDW) and superconductivity. The alkali-meta…
Unconventional superconductivity after the BCS paradigm and empirical rules for the exploration of high temperature superconductors
Hai-Hu Wen
Superconducting state is achieved through quantum condensation of Cooper pairs which are new types of charge carriers other than single electrons in normal metals. The theory estab…
Comparative studies on unconventional superconductivity in CrRu compounds with bcc and A15 structures
Zhengyan Zhu, Ying-Jie Zhang, Yiwen Li +3
Chromium (Cr) is a transition metal element with 3 orbital electrons. In most compounds containing Cr, due to the correlation effect, twofold features of localization and itiner…
Tuning the competition between superconductivity and charge order in kagome superconductor Cs(V1-xNbx)3Sb5
Yongkai Li, Qing Li, Xinwei Fan +10
The recently discovered coexistence of superconductivity and charge density wave order in the kagome systems AV3Sb5 (A = K, Rb, Cs) has stimulated enormous interest. According to t…
Planckian Dissipation and non-Ginzburg-Landau Type Upper Critical Field in Bi2201
Qihao Zang, Zhengyan Zhu, Zuyu Xu +7
Resistivity and Hall effect measurements have been carried out on a micro-fabricated bridge of Bi2201 single crystal at low temperatures down to 0.4 K under high magnetic fields. W…
Superconductivity arising from pressure induced Lifshitz transition in RbPdSe with kagome lattice
Qing Li, Yuxiang Wu, Xinwei Fan +5
According to the Bardeen-Cooper-Schrieffer (BCS) theory, superconductivity usually needs well defined Fermi surface(s) with strong electron-phonon coupling and moderate quasipartic…
Characterization of the (Cu,C)BaCaCuO single crystals grown under high pressure
Chengping He, Xue Ming, Jin Si +3
By using high pressure and high temperature (3.7 GPa, 1120 C) synthesis technique, we have grown (Cu,C)BaCaCuO single crystals. X-ray diffraction, sc…
Pseudogap and Strong Pairing Induced by Incipient and Shallow Bands in the Quasi-Two-Dimensional KCaFeAsF
Jiahao Hao, Wenshan Hong, Xiaoxiang Zhou +6
The optical properties of KCaFeAsF (K12442, ~K) and KCa(FeNi)AsF (Ni-K12442, ~K) have been e…
Superconductivity in nickel based 112 systems
Qiangqiang Gu, Hai-Hu Wen
Superconductivity has been discovered recently in nickel based 112 infinite thin films ANiO ( = La, Nd, Pr and A = Sr, Ca). They are isostructural to the infini…
A generalized phenomenological model for the magnetic field penetration and magnetization hysteresis loops of a type-II superconductor
Wei Xie, Yu-Hao Liu, Hai-Hu Wen
A generalized phenomenological model for the critical state of type-II superconductors with magnetic field parallel to the superconducting plate is proposed. This model considers t…
Direct Visualization of a Static Incommensurate Antiferromagnetic Order by Suppressing the Superconducting Phase Coherence in Fe-doped Bi2Sr2CaCu2O8+delta
Siyuan Wan, Huazhou Li, Peayush Choubey +6
In cuprate superconductors, due to strong electronic correlations, there are multiple intertwined orders which either coexist or compete with superconductivity. Among them the anti…
Superconductivity at 44.4 K achieved by intercalating EMIM+ into FeSe
Jinhua Wang, Qing Li, Wei Xie +3
Superconductivity with transition temperature Tc above 40 K was observed in protonated FeSe (Hy-FeSe) previously with the ionic liquid of EMIM-BF4 used in the electrochemical proce…
Terahertz pulse-driven collective mode in the nematic superconducting state of BaKFeAs
Romain Grasset, Kota Katsumi, Pierre Massat +4
We investigate the iron-based superconductor BaKFeAs using intense terahertz (THz) light. In the superconducting state a THz Kerr signal is observed and assigne…
Twofold symmetry of -axis resistivity in topological kagome superconductor CsVSb with in-plane rotating magnetic field
Ying Xiang, Qing Li, Yongkai Li +5
In transition metal compounds, due to the interplay of charge, spin, lattice and orbital degrees of freedom, many intertwined orders exist with close energies. One of the commonly…
Distinct Properties of Vortex Bound States Driven by Temperature
Xinwei Fan, Xiaoyu Chen, Huan Yang +1
We investigate the behavior of vortex bound states in the quantum limit by self-consistently solving the Bogoliubov-de Gennes equation. We find that the energies of the vortex boun…
Origin of the Charge Density Wave in the Kagome Metal CsVSb as Revealed by Optical Spectroscopy
Xiaoxiang Zhou, Yongkai Li, Xinwei Fan +5
We report on a detailed study of the optical properties of CsVSb at a large number of temperatures above and below the charge-density-wave (CDW) transition. Above the C…
Friedel Oscillations of Vortex Bound States Under Extreme Quantum Limit in KCa2Fe4As4F2
Xiaoyu Chen, Wen Duan, Xinwei Fan +6
We report the observation of discrete vortex bound states with the energy levels deviating from the widely believed ratio of 1:3:5 in the vortices of an iron based superconductor K…
Single particle tunneling spectroscopy and superconducting gaps in layered iron based superconductor KCaFeAsF
Wen Duan, Kailun Chen, Wenshan Hong +5
We perform scanning tunneling microscopy/spectroscopy study on the layered iron based superconductor KCaFeAsF with a critical temperature of about 33.5 K. Two types…
Charge-stripe Fluctuations in NdNiO as Evidenced by Optical Spectroscopy
Jiahao Hao, Xinwei Fan, Qing Li +6
We present an investigation into the optical properties of NdNiO at different temperatures from 300 down to 5~K over a broad frequency range. The optical conducti…
NMR Evidence of Antiferromagnetic Spin Fluctuations in NdSrNiO
Yi Cui, C. Li, Q. Li +7
Despite the recent discovery of superconductivity in NdSrNiO thin films, the absence of superconductivity and antiferromagnetism in their bulk materials remain a…
Synthesis and physical properties of perovskite SmSrNiO (x = 0, 0.2) and infinite-layer SmSrNiO nickelates
Chengping He, Xue Ming, Qing Li +3
Recently, superconductivity at about 9-15K was discovered in NdSrNiO infinite-layer thin films, which has stimulated enormous interests in related rare-earth nickel…
Unconventional superconductivity induced by suppressing an iron-selenium based Mott insulator CsFe4-xSe4
Jin Si, Guan-Yu Chen, Qing Li +3
There are several FeSe based superconductors, including the bulk FeSe, monolayer FeSe thin film, intercalated KxFe2-ySe2 and Li1-xFexOHFeSe, etc. Their normal states all show metal…