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Confirmation of the X(1835) and observation of the resonances X(2120) and X(2370) in J/psi->gamma pi^+pi^-eta'
BESIII Collaboration
With a sample of (225.2\pm2.8)*10^{6} J/psi events registered in the BESIII detector, J/psi->gamma pi^+ pi^- eta' is studied using two eta' decay modes: eta'->pi^+ pi^- eta and eta…
Study of a0(980)--f0(980) mixing
The BESIII Collaboration
Using samples of 2.25*10^8 J/psi events and 1.06*10^8 psi' events collected with the BES III detector, we study the f0(980) to a0(980) and a0(980) to f0(980) transitions in the pro…
Universality of superconducting gaps in overdoped Ba0.3K0.7Fe2As2 observed by angle-resolved photoemission spectroscopy
K. Nakayama, T. Sato, P. Richard +8
We have performed angle-resolved photoemission spectroscopy on the overdoped BaKFeAs superconductor ( = 22 K). We demonstrate that the superconducting…
NMR evidence of strong-correlated superconductivity in LiFeAs: tuning toward an SDW ordering
L. Ma, J. Zhang, G. F. Chen +1
In this letter, we reported the results of NMR study on LiFeAs single crystals. We find a strong evidence of the low temperature spin fluctuations; by changing sample preparation c…
Unconventional superconducting gap in NaFeCoAs observed by angle-resolved photoemission spectroscopy
Z. -H. Liu, P. Richard, K. Nakayama +16
We have performed high resolution angle-resolved photoemission measurements on superconducting electron-doped NaFeCoAs (18 K). We observed a hole-like…
Intergrain effects in the AC susceptibility of polycrystalline LaFeAsO_{0.94}F_{0.06}: comparison with cuprate superconductors
G. Bonsignore, A. Agliolo Gallitto M. Li Vigni, J. L. Luo +3
The AC susceptibility at zero DC magnetic field of a polycrystalline sample of LaFeAsO_{0.94}F_{0.06} (T_c = 24 K) has been investigated as a function of the temperature, the ampli…
23Na and 75As NMR Studies on NaFeAs0.8P0.2 Single Crystals
L. Ma, J. Zhang, D. M. Wang +4
We report our Na and As NMR studies on isovalent phosphorus-doped NaFeAsP ( 33 K) single crystals. Our data suggest a dramatic enhancement of th…
Superconductivity at 33 K in "111" single crystals at ambient pressure
T. -L. Xia, J. B. He, D. M. Wang +1
We have successfully grown single crystalline NaFeAs with cobalt or phosphor doping. Bulk superconductivity occurs in NaFeCoAs at 19 K while much higher transitio…