Superconductivity-induced re-entrance of the orthorhombic distortion in Ba1−xKxFe2As2
Superconductivity-induced re-entrance of the orthorhombic distortion in Ba1−xKxFe2As2
Abstract Detailed knowledge of the phase diagram and the nature of the competing magnetic and superconducting phases is imperative for a deeper understanding of the physics of iron-based superconductivity. Magnetism in the iron-based superconductors is usually a stripe-type spin-density-wave, which breaks the tetragonal symmetry of the lattice, and is known …