77 citations · 234 across the 8 of their papers we have counts for
8 papers
Scaling of the Fano effect of the in-plane Fe-As phonon and the superconducting critical temperature in BaKFeAs
B. Xu, E. Cappelluti, L. Benfatto +11
By means of infrared spectroscopy we determine the temperature-doping phase diagram of the Fano effect for the in-plane Fe-As stretching mode in BaKFeAs.…
Nearly-critical spin and charge fluctuations in KFe2As2 observed by high-pressure NMR
P. S. Wang, P. Zhou, J. Dai +7
We report a high-pressure 75As NMR study on the heavily hole-doped iron pnictide superconductor KFe2As2 (Tc~3.8 K). The low-energy spin fluctuations are found to decrease with appl…
Anomalous phonon redshift in K-doped BaFe2As2 iron pnictides
B. Xu, Y. M. Dai, B. Shen +9
The effect of K, Co and P dopings on the lattice dynamics in the BaFeAs system is studied by infrared spectroscopy. We focus on the phonon at 253 cm, the high…
Evolution from incoherent to coherent electronic states and its implications to superconductivity in FeTe1-xSex
E. Ieki, K. Nakayama, Y. Miyata +14
We have performed systematic angle-resolved photoemission spectroscopy (ARPES) of iron-chalcogenide superconductor FeTe1-xSex to elucidate the electronic states relevant to the sup…
Pseudogap in underdoped BaKFeAs as seen via optical conductivity
Y. M. Dai, B. Xu, B. Shen +4
We report the observation of a pseudogap in the \emph{ab}-plane optical conductivity of underdoped BaKFeAs ( and 0.12) single crystals. Both samp…
Doping evolution of the optical scattering rate and effective mass of Bi(2)Sr(2-x)La(x)CuO(6)
Y. M. Dai, B. Xu, P. Cheng +4
We determined the optical conductivity of Bi(2)Sr(2-x)La(x)CuO(6) at dopings covering the phase diagram from the underdoped to the overdoped regimes. The frequency dependent scatte…
Fermiology of Sr4V2O6Fe2As2: Quasi-Nested Fe vs Mott-Insulating V Orbitals
T. Qian, N. Xu, Y. -B. Shi +14
We have performed an angle-resolved photoemission spectroscopy study of a new iron-based superconductor Sr4V2O6Fe2As2. While V 3d orbitals are found to be in a Mott insulator state…
Electron-Hole Asymmetry in Superconductivity of Pnictides Originated from the Observed Rigid Chemical Potential Shift
M. Neupane, P. Richard, Y. -M. Xu +12
We have performed a systematic photoemission study of the chemical potential shift as a function of carrier doping in a pnictide system based on BaFeAs. The experimentally…