Superconductivity is a remarkably widespread phenomenon that is observed in most metals
cooled to very low temperatures. The ubiquity of such conventional superconductors, and …

Iron‐based superconductors are well‐known for their intriguing phase diagrams, which
manifest a complex interplay of electronic, magnetic, and structural degrees of freedom …

The mechanism behind the nematicity of FeSe is not known. Through elastoresitivity
measurements it has been shown to be an electronic instability. However, thus far …

The sulfur-substituted FeSe, FeSe 1− x S x, is one of the unique systems that provides an
independent tunability of nematicity, antiferromagnetism, and superconductivity under …

The iron-based superconductor FeSe offers a unique possibility to study the interplay of
superconductivity with purely nematic as well magnetic-nematic order by pressure (p) …

Nematicity is ubiquitous in electronic phases of high-T c superconductors, particularly in the
Fe-based systems. We used inelastic x-ray scattering to extract the temperature-dependent …

The underdoped phase diagram of the iron-based superconductors exemplifies the
complexity common to many correlated materials. Indeed, multiple ordered states that break …

We consider the electronic spectrum near M=(π, π) in the nematic phase of FeSe (T< T nem)
and make a detailed comparison with recent ARPES and STM experiments. Our main focus …

We investigate the impact of spin anisotropic interactions, promoted by spin-orbit coupling,
on the magnetic phase diagram of the iron-based superconductors. Three distinct magnetic …

We report muon spin rotation and magnetization measurements under pressure on Fe 1+ δ
Se 1-x S x with x≈ 0.11. Above p≈ 0.6 GPa we find a microscopic coexistence of …