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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…
Effects of Zn substitution on the electronic structure of BaFeAs revealed by angle-resolved photoemission spectroscopy
S. Ideta, T. Yoshida, M. Nakajima +13
In Fe-based superconductors, electron doping is often realized by the substitution of transition-metal atoms for Fe. In order to investigate how the electronic structure of the par…
Effect of doping on the magnetostructural ordered phase of iron arsenides: A comparative study of the resistivity anisotropy in the doped BaFeAs with doping into three different sites
Shigeyuki Ishida, Masamichi Nakajima, Tian Liang +8
In order to unravel a role of doping in the iron-based superconductors, we investigated the in-plane resistivity for BaFeAs doped at either of the three different lattice s…
Pseudogap formation above the superconducting dome in iron-pnictides
T. Shimojima, T. Sonobe, W. Malaeb +29
The nature of the pseudogap in high transition temperature (high-Tc) superconducting cuprates has been a major issue in condensed matter physics. It is still unclear whether the hi…
The k-space Origins of Scattering in Bi2Sr2CaCu2O8+x
Jacob W. Alldredge, Eduardo M. Calleja, Jixia Dai +3
We demonstrate a general, computer automated procedure that inverts the q-space scattering data measured by spectroscopic imaging scanning tunneling microscopy (SI-STM) to determin…
Importance of both spin and orbital fluctuations in BaFe2(As1-xPx)2 : Evidence from superconducting gap anisotropy
T. Yoshida, S. Ideta, T. Shimojima +32
In the iron pnictide superconductors, two distinct unconventional mechanisms of superconductivity have been put forth: One is mediated by spin fluctuations leading to the s+- state…