Motivated by the recent discovery of superconductivity in infinite-layer nickelates RE 1-δ Sr δ
NiO 2 (RE= Nd, Pr), we study the role of Hund coupling J in a quarter-filled two-orbital …

Recent inelastic neutron scattering studies by B. Pan et al.[Nat. Commun. 8, 123 (2017)
2041-1723 10.1038/s41467-017-00162-x] find evidence for spin resonances in an iron …

Berg, Metlitski, and Sachdev [Science 338, 1606 (2012) SCIEAS 0036-8075
10.1126/science. 1227769] have shown that the exchange of hidden spin fluctuations by …

Here, crystal structure, electronic structure, chemical substitution, pressure-dependent
superconductivity, and thickness-dependent properties in FeSe-based superconductors are …

We examine the existence of semimetallic spin-density wave (SDW) states in iron pnictides.
In the experimentally observed metallic SDW state, the symmetry-protected Dirac cones are …

We have carried out density-functional theory (DFT) calculations for the chromium pnictide
BaCr 2 P 2, which is structurally analogous to BaFe 2 As 2, a parent compound for iron …

An exact particle–hole transformation is discovered in a local-moment model for a single
layer of heavily electron-doped FeSe. The model harbors hidden magnetic order between …

Spin-density waves (SDW) are common magnetic instabilities in metals that show nested
Fermi surfaces. SDW states lie nearby the phase diagram of copper-oxide and iron-pnictide …

Hidden spin-density waves (hSDW) with Neel ordering vector (pi, pi) have been proposed
recently as parent groundstates to electron-doped iron-selenide superconductors. Doping …