The iron-based superconductors that contain FeAs layers as the fundamental building block
in the crystal structures have been rationalized in the past using ideas based on the Fermi …

The present article reviews recent experimental investigations of spin dynamics in iron-
based superconductors and their parent compounds by means of inelastic neutron …

We report on a new iron selenide superconductor with a T c onset of 45 K and the nominal
composition Li x (C 5 H 5 N) y Fe 2− z Se 2, synthesized via intercalation of dissolved …

Superconductivity arises from two distinct quantum phenomena: electron pairing and long-
range phase coherence. In conventional superconductors, the two quantum phenomena …

We elucidate the existing controversies in the newly discovered K-doped iron selenide (K x
Fe 2-y Se 2-z) superconductors. The stoichiometric KFe 2 Se 2 with 2× 2 charge ordering …

Cuprate high-temperature superconductors consist of two quasi-two-dimensional (2D)
substructures: CuO 2 superconducting layers and charge reservoir layers. The …

The recently discovered K-Fe-Se high-temperature superconductor has caused heated
debate regarding the nature of its parent compound. Transport, angle-resolved …

Inelastic neutron scattering is employed to study the reciprocal-space structure and
dispersion of magnetic excitations in the normal and superconducting states of single …

We report the superconductivity evolution of one unit cell (1-UC) and 2-UC FeSe films on
SrTi O 3 (001) substrates with potassium (K) adsorption. By in situ scanning tunneling …

We report here that a new superconducting phase with much higher Tc has been found in K
intercalated FeSe compound with excess Fe. We successfully grew crystals by precisely …