Nematic phases, in which electrons in a solid spontaneously break rotational symmetry
while preserving translational symmetry, exist in several families of unconventional …

Multiband superconductors can host collective excitations with marked differences with
respect to their single-band counterpart. We first study the spectrum of collective amplitude …

We report a comprehensive study of the nanoscale inhomogeneity and disorder on the
thermoelectric properties of FeSe 1-x S x (0≤ x≤ 1) single crystals and the evolution of …

The generation of nonuniform quadrupole states plays a crucial role in understanding
various fascinating phenomena observed in the advancement of several research areas, eg …

We study the crystal structure of the tetragonal iron selenide FeSe and its nematic phase
transition to the low-temperature orthorhombic structure using synchrotron x-ray and neutron …

Clarifying the origin of nematic state in FeSe is one of urgent problems in the field of iron-
based superconductivity. Motivated by the discovery of a nematic solution in the density …

FeSe1− x S x remains one of the most enigmatic systems of Fe-based superconductors.
While much is known about the orthorhombic parent compound, FeSe, the tetragonal …

A Raman scattering study covering the entire substitution range of the FeSe 1− x S x solid
solution is presented. Data were taken as a function of sulfur concentration x for 0≤ x≤ 1, of …

Nematic phases, where electrons in a solid spontaneously break rotational symmetry while
preserving the translational symmetry, exist in several families of unconventional …

Electronic fluids can display exciting dynamical properties. In particular, due to Landau
damping, the collective modes spectrum of an electronic system with multipolar interactions …