The discovery of magnetism by the ancient Greeks was enabled by the natural occurrence of
lodestone–a magnetized version of the mineral magnetite. Nowadays, natural minerals …

Iron-based chalcogenides are complex superconducting systems in which orbitally
dependent electronic correlations play an important role. Here, using high-resolution angle …

We present results from light scattering experiments on tetragonal FeS with the focus placed
on lattice dynamics. We identify the Raman active A 1 g and B 1 g phonon modes, a second …

Among iron chalcogenide superconductors, FeS can be viewed as a simple, highly
compressed relative of FeSe without a nematic phase and with weaker electronic …

Two-dimensional (2D) van der Waals (vdW) materials with promising electrical, magnetic,
optical, and mechanical properties have shown great potential for next-generation …

Here we report the electronic structure of FeS, a recently identified iron-based
superconductor. Our high-resolution angle-resolved photoemission spectroscopy studies …

Transport properties of tetragonal iron monosulfide, mackinawite, show a range of complex
features. Semiconductive behavior and proximity to metallic states with nodal …

A nematic transition preceding a long-range spin density wave antiferromagnetic phase is a
common feature of many parent compounds of Fe-based superconductors. However, in the …

Connections between crystal chemistry and critical temperature T c have been in the focus
of superconductivity, one of the most widely studied phenomena in physics, chemistry, and …

High-temperature superconductivity occurs near antiferromagnetic instabilities and the
nematic state. Debate remains on the origin of nematic order in FeSe and its relation with …