292 citations · 1.2k across the 19 of their papers we have counts for
16 papers · 1 filter
Optical observation of spin-density-wave fluctuations in Ba122 iron-based superconductors
B. Xu, Y. M. Dai, H. Xiao +8
In iron-based superconductors, a spin-density-wave (SDW) magnetic order is suppressed with doping and unconventional superconductivity appears in close proximity to the SDW instabi…
Simultaneous emergence of superconductivity, inter-pocket scattering and nematic fluctuation in potassium-coated FeSe superconductor
Z. R. Ye, C. F. Zhang, H. L. Ning +7
Superconductivity originates from pairing of electrons. Pairing channel on Fermi surface and pairing glue are thus two pivotal issues for understanding a superconductor. Recently,…
Superconducting gap in BaFe(AsP) from temperature dependent transient optical reflectivity
A. Pogrebna, T. Mertelj, Z. R. Ye +2
Temperature and fluence dependence of the 1.55-eV optical transient reflectivity in BaFe(AsP) was measured and analysed in the low and high excitation den…
Identification of prototypical Brinkman-Rice Mott physics in a class of iron chalcogenides superconductors
X. H. Niu, S. D. Chen, J. Jiang +17
The 122 series of iron-chalcogenide superconductors, for example KFeSe, only possesses electron Fermi pockets. Their distinctive electronic structure challe…
The weak electronic correlations and absence of heavy Fermion state in KNiSe
Q. Fan, X. P. Shen, M. Y. Li +9
We have studied the low-lying electronic structure of a new ThCrSi-type superconductor KNiSe with angle-resolved photoemission spectroscopy. Three bands intersect t…
Drastic electronic structure reconstruction of CaPrFeAs in the collapsed tetragonal phase
D. F. Xu, D. W. Shen, J. Jiang +8
We report the electronic structure reconstruction of CaPrFeAs ( = 0.1 and 0.15) in the low temperature collapsed tetragonal (CT) phase observed by angle-reso…
Extraordinary quasiparticle scattering and bandwidth-control by dopants in iron-based superconductors
Z. R. Ye, Y. Zhang, F. Chen +9
The diversities in crystal structures and ways of doping result in extremely diversified phase diagrams for iron-based superconductors. With angle-resolved photoemission spectrosco…
Electronic Structure of Single Crystalline NdOFBiS Studied by Angle-resolved Photoemission Spectroscopy
Z. R. Ye, H. F. Yang, D. W. Shen +9
NdOFBiS is a new layered superconductor. We have studied the low-lying electronic structure of a single crystalline NdOFBiS superconduct…
The unique electronic structure of Ca10(Pt4As8)(Fe2-xPtxAs2)5 with metallic Pt4As8 layers
X. P. Shen, S. D. Chen, Q. Q. Ge +8
We studied the low-lying electronic structure of the newly discovered iron-platinum-arsenide superconductor, Ca10(Pt4As8)(Fe2-xPtxAs2)5 (Tc=22 K) with angle-resolved photoemission…
Orbital selective correlations between nesting/scattering/Lifshitz transition and the superconductivity in AFe1-xCoxAs (A=Li, Na)
Z. R. Ye, Y. Zhang, M. Xu +9
The correlations between the superconductivity in iron pnictides and their electronic structures are elusive and controversial so far. Here through angle-resolved photoemission spe…
Angle-resolved photoemission evidence of s-wave superconducting gap in KxFe2-ySe2 superconductor
M. Xu, Q. Q. Ge, R. Peng +7
Although nodeless superconducting gap has been observed on the large Fermi pockets around the zone corner in KxFe2-ySe2, whether its pairing symmetry is s-wave or nodeless d-wave i…
Robust nodal superconductivity induced by isovalent doping in Ba(FeRu)As and BaFe(AsP)
X. Qiu, S. Y. Zhou, H. Zhang +9
We present the ultra-low-temperature heat transport study of iron-based superconductors Ba(FeRu)As and BaFe(AsP). For optimally doped Ba(Fe$…
Symmetry breaking via orbital-dependent reconstruction of electronic structure in uniaxially strained NaFeAs
Y. Zhang, C. He, Z. R. Ye +11
The superconductivity discovered in iron-pnictides is intimately related to a nematic ground state, where the C4 rotational symmetry is broken via the structural and magnetic trans…
Nodal superconducting gap structure in ferropnictide superconductor BaFe2(As0.7P0.3)2
Y. Zhang, Z. R. Ye, Q. Q. Ge +5
The superconducting gap is a pivotal character for a superconductor. While the cuprates and conventional phonon-mediated superconductors are characterized by distinct d-wave and s-…
Electronic identification of the actual parental phase of KxFe2-ySe2 superconductor and its intrinsic mesoscopic phase separation
F. Chen, M. Xu, Q. Q. Ge +14
While the parent compounds of the cuprate high temperature superconductors (high-Tc's) are Mott insulators, the iron-pnictide high-Tc's are in the vicinity of a metallic spin densi…
Phosphor induced significant hole-doping in ferropnictide superconductor BaFe2(As(1-x)Px)2
Z. R. Ye, Y. Zhang, M. Xu +6
The superconductivity in high temperature superconductors ordinarily arises when doped with hetero-valent ions that introduce charge carriers. However, in ferropnictides, "iso-vale…