77 citations · 305 across the 6 of their papers we have counts for
6 papers
Translational symmetry breaking in the electronic nematic phase of BaFe2As2
K. Koshiishi, L. Liu, K. Okazaki +13
The microscopic origin of the nematicity, namely, four-fold rotational symmetry breaking in iron-based superconductors has been controversial since its discovery. In particular, it…
Normal-state charge dynamics in doped BaFe2As2: Roles of doping and necessary ingredients for superconductivity
M. Nakajima, S. Ishida, T. Tanaka +11
We carried out a comparative study of the in-plane resistivity and optical spectrum of doped BaFe2As2 and investigated the doping evolution of the charge dynamics. For BaFe2As2, ch…
Effect of Co doping on the in-plane anisotropy in the optical spectrum of underdoped Ba(Fe1-xCox)2As2
M. Nakajima, S. Ishida, Y. Tomioka +7
We investigated the anisotropy in the in-plane optical spectra of detwinned Ba(Fe1-xCox)2As2. The optical conductivity spectrum of BaFe2As2 shows appreciable anisotropy in the magn…
Abrupt change in the energy gap of superconducting Ba1-xKxFe2As2 single crystals with hole doping
W. Malaeb, T. Shimojima, Y. Ishida +17
We performed a Laser angle-resolved photoemission spectroscopy (ARPES) study on a wide doping range of Ba1-xKxFe2As2 (BaK) and precisely determined the doping evolution of the supe…
Manifestations of multiple-carrier charge transport in the magnetostructurally ordered phase of undoped BaFeAs
S. Ishida, T. Liang, M. Nakajima +10
We investigated the transport properties of BaFeAs single crystals before and after annealing with BaAs powder. The annealing remarkably improves transport properties, in p…
Possible hydrogen doping and enhancement of Tc (= 35 K) in a LaFeAsO-based superconductor
K. Miyazawa, S. Ishida, K. Kihou +12
We report that the incorporation of hydroxide ions (OH)- significantly enhances the superconducting transition temperature (Tc) in the LnFeAsO-based superconductors (Ln1111: Ln = L…