Superconductivity develops in metals upon the formation of a coherent macroscopic
quantum state of electron pairs. Iron pnictides and chalcogenides are materials that have …

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 response of the worldwide scientific community to the discovery in 2008 of
superconductivity at T c= 26 K in the Fe-based compound LaFeAsO1− x F x has been very …

High-temperature superconductivity in the iron-based materials emerges from, or sometimes
coexists with, their metallic or insulating parent compound states. This is surprising, as these …

The recent discovery of high-temperature superconductivity in iron-based compounds has
attracted much attention. How to further increase the superconducting transition temperature …

Nematicity, defined as broken rotational symmetry, has recently been observed in competing
phases proximate to the superconducting phase in the cuprate high-temperature …

We present a field-theoretic renormalization group analysis of Abanov and Chubukov's
model of the spin density wave transition in two dimensional metals. We identify the …

High-resolution x-ray diffraction measurements reveal an unusually strong response of the
lattice to superconductivity in Ba (Fe 1-x Co x) 2 As 2. The orthorhombic distortion of the …

The recently discovered FeAs-based superconductors are a new, promising set of materials
for technological and basic research. They offer transition temperatures as high as 55 K as …