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

High-transition temperature (high-T c) superconductivity in the iron pnictides or
chalcogenides emerges from the suppression of the static antiferromagnetic order in their …

Understanding the microscopic origins of electronic phases in high-transition temperature
(high-T c) superconductors is important for elucidating the mechanism of superconductivity …

In a superconductor electrons form pairs and electric transport becomes dissipation-less at
low temperatures. Recently discovered iron-based superconductors have the highest …

We use nuclear magnetic resonance (NMR), high-resolution x-ray, and neutron scattering
studies to study structural and magnetic phase transitions in phosphorus-doped BaFe 2 (As …

Spin-orbit coupling (SOC) is a key to understand the magnetically driven superconductivity
in iron-based superconductors, where both local and itinerant electrons are present and the …

High-energy electron irradiation at low temperatures is an efficient and controlled way to
create vacancy–interstitial Frenkel pairs in a crystal lattice, thereby inducing nonmagnetic …

We use polarized neutron scattering to demonstrate that in-plane spin excitations in electron
doped superconducting BaFe 1.904 Ni 0.096 As 2 (T c= 19.8 K) change from isotropic to …

We have systematically studied the nematic fluctuations in the electron-doped iron-based
superconductor BaFe 2-x Ni x As 2 by measuring the in-plane resistance change under …

In Chap. 4, we noted that the emergent incommensurate (IC) short-range antiferromagnetic
(AF) order near optimal superconductivity of Ba (Fe _ 1-x 1-x Co _ xx) _2 2 As _ 2 2 heavily …