Electron correlations play a central role in iron-based superconductors. In these systems,
multiple Fe 3 d-orbitals are active in the low-energy physics, and they are not all degenerate …

K-fluorescence X-ray emission spectroscopy (XES) is receiving growing interest in all fields
of natural sciences to investigate the local spin. The spin sensitivity in Kβ (Kα) XES stems …

Hund metals are multi-orbital systems with moderate Coulomb interaction, U, among
charges and sizeable Hund's rule coupling, J (< U), that aligns the spins in different orbitals …

The ability of resonant X‐ray emission spectroscopy (XES) to recover physical oxidation
state information, which may often be ambiguous in conventional X‐ray spectroscopy, is …

The origin of the electronic nematicity in FeSe is one of the most important unresolved
puzzles in the study of iron-based superconductors. In both spin-and orbital-nematic models …

We study the characteristic timescales of the fluctuating local moments in Hund's metal
systems for different degrees of correlation. By analyzing the dynamical spin susceptibility in …

We study a three-component fermionic fluid in an optical lattice in a regime of intermediate to
strong interactions allowing for optical processes connecting the different components …

We compute the compressibility of the conduction electrons in both bulk orthorhombic FeSe
and monolayer FeSe on a SrTiO 3 substrate, including dynamical electronic correlations …

Multiorbital systems such as the iron-based superconductors provide a new avenue to attack
the long-standing problem of superconductivity in strongly correlated systems. In this work …

It is currently understood that high temperature superconductivity (SC) in the transition metal
(M) substituted iron arsenides Ba (Fe 1− x M x) 2 As 2 is promoted by magnetic excitations …