449 citations · 1.5k across the 22 of their papers we have counts for
18 papers · 1 filter
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…
Ultrafast modulation of the chemical potential in BaFeAs by coherent phonons
L. X. Yang, G. Rohde, T. Rohwer +18
Time- and angle-resolved extreme ultraviolet photoemission spectroscopy is used to study the electronic structure dynamics in BaFeAs around the high-symmetry points and…
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…
Calorimetric study in single crystal of CsFeAs
A. F. Wang, B. Y. Pan, X. G. Luo +8
We measured resistivity and specific heat of high-quality CsFeAs single crystals, which were grown by using a self-flux method. The CsFeAs crystal shows sharp super…
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…
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…
Heavily electron-doped electronic structure and isotropic superconducting gap in AxFe2Se2 (A=K,Cs)
Y. Zhang, L. X. Yang, M. Xu +10
The low energy band structure and Fermi surface of the newly discovered superconductor, AxFe2Se2 (A=K,Cs), have been studied by angle-resolved photoemission spectroscopy. Compared…
Out-of-plane momentum and symmetry dependent superconducting gap in Ba0.6K0.4Fe2As2
Y. Zhang, L. X. Yang, F. Chen +10
The three-dimensional band structure and superconducting gap of Ba0.6K0.4Fe2As2 are studied with high-resolution angle-resolved photoemission spectroscopy. In contrast to previous…
Strong correlation and massive spectral-weight redistribution induced spin density wave in a-Fe1.06Te
Y. Zhang, F. Chen, C. He +11
The electronic structure of a-Fe1.06Te is studied with angle-resolved photoemission spectroscopy. We show that there is substantial spectral weight around Gamma and X, and lineshap…
Electronic structure reconstruction: the driving force behind the magnetic and structural transitions in NaFeAs
C. He, Y. Zhang, B. P. Xie +11
The electronic structure of NaFeAs is studied with angle resolved photoemission spectroscopy on high quality single crystals. Large portions of the band structure start to shift ar…
The orbital characters of bands in iron-based superconductor BaFe1.85Co0.15As2
Y. Zhang, F. Chen, C. He +13
The unconventional superconductivity in the newly discovered iron-based superconductors is intimately related to its multi-band/multi-orbital nature. Here we report the comprehensi…
Doping and Temperature Dependence of Raman Scattering of NdFeAsO1-xFx (x=0.0, 0.1, 0.2) Superconductor
L. Zhang, T. Fujita, F. Chen +3
Raman spectra of polycrystalline NdFeAsO1-xFx (x=0.0, 0.1, 0.2) compound have been systematically investigated as functions of temperature and fluorine concentration. Scanning elec…
Correlation effects of exchange splitting and coexistence of spin-density-wave and superconductivity in single crystalline Sr1-xKxFe2As2
Y. Zhang, J. Wei, H. W. Ou +13
The nature of spin-density wave and its relation with superconductivity are crucial issues in the newly discovered Fe-based high temperature superconductors. Particularly it is unc…
Doping-insensitive density-of-states suppression in polycrystalline iron-based superconductor SmOFFeAs
H. W. Ou, Y. Zhang, J. F. Zhao +15
We investigated the temperature dependence of the density-of-states in the iron-based superconductor SmO_1-xF_xFeAs (x=0, 0.12, 0.15, 0.2) with high resolution angle-integrated pho…
Angle integrated photoemission study of SmOFFeAs
H. W. Ou, J. F. Zhao, Y. Zhang +10
The electronic structure of the new superconductor, SmOFFeAs (), has been studied by angle-integrated photoemission spectroscopy. Our data show a sharp feature…