Kamihara and coworkers' report of superconductivity at T c= 26 K in fluorine-doped
LaFeAsO inspired a worldwide effort to understand the nature of the superconductivity in this …

The surprising discovery of superconductivity in layered iron-based materials, with transition
temperatures climbing as high as 55 K, has led to thousands of publications on this subject …

The recently discovered Fe-pnictide and chalcogenide superconductors display low-
temperature properties suggesting superconducting gap structures which appear to vary …

I review theoretical ideas and implications of experiments for the gap structure and symmetry
of the Fe-based superconductors. Unlike any other class of unconventional …

Technological progress in material synthesis, as well as artificial realization of condensed
matter scenarios via ultra-cold atomic gases in optical lattices or epitaxial growth of thin …

Spin dynamics evolution of BaFe 2 (As 1-x P x) 2 was probed as a function of P
concentration via P 31 NMR. Our NMR study reveals that two-dimensional antiferromagnetic …

High-precision measurements of magnetic penetration depth λ in clean single crystals of
LiFeAs and LiFeP superconductors reveal contrasting behaviors. In LiFeAs the low …

The response of the superconducting state and crystal structure of LiFeAs to chemical
substitutions on both the Li and the Fe sites has been probed using high-resolution X-ray …

We report neutron inelastic-scattering measurements on the stoichiometric iron-based
superconductor LiFeAs. We find evidence for (i) magnetic scattering consistent with strong …

We investigate the fishtail effect, critical current density (J c), and vortex dynamics in LiFeAs
single crystals. The sample exhibits a second peak (SP) in the magnetization loop only with …