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 …

Superconductivity (SC) and ferromagnetism (FM) are normally antagonistic, and their
coexistence in a single crystalline material appears to be very rare. Over a decade ago, the …

We report the synthesis, crystal structure, and physical properties of a quinary iron arsenide
fluoride, KCa2Fe4As4F2. The new compound crystallizes in a body-centered tetragonal …

Superconductivity (SC) and charge-density wave (CDW) are two contrasting yet relevant
collective electronic states, which have received sustained interest for decades. Here, we …

We have synthesized a novel europium bismuth sulfofluoride, Eu3Bi2S4F4, by solid-state
reactions in sealed evacuated quartz ampules. The compound crystallizes in a tetragonal …

The basic structural chemistry of superconducting pnictides and pnictide oxides is reviewed.
Crystal chemical details of selected compounds and group subgroup schemes are …

We have synthesized a new oxypnictide, Ba2Ti2Fe2As4O, via a solid-state reaction under a
vacuum. The compound crystallizes in a body-centered tetragonal lattice, which can be …

The second class of high-temperature superconductors (HTSCs), iron-based pnictides and
chalcogenides, necessarily contain Fe 2 X 2 (" X" refers to a pnictogen or a chalcogen …

Superconductivity and ferromagnetism are two antagonistic cooperative phenomena, which
makes it difficult for them to coexist. Here we demonstrate experimentally that they do coexist …

The interplay between Cooper pairs and Bogoliubov‐de Gennes (BdG) quasiparticles is a
topic of considerable interest in the quantum properties of solids, but its important ingredient …