Traditionally, the primary field, where curvature has been at the heart of research, is the
theory of general relativity. In recent studies, however, the impact of curvilinear geometry …

Kamihara and coworkers' report of superconductivity at T c= 26 K in fluorine-doped
LaFeAsO inspired a worldwide effort to understand the nature of the superconductivity in this …

We discover a robust coexistence of superconductivity and ferromagnetism in an iron
arsenide RbEuFe 4 As 4. The new material crystallizes in an intergrowth structure of RbFe 2 …

We report the discovery of a novel Fe-based superconductor EuAFe4As4 (A= Rb, Cs) and
describe its superconducting properties. EuAFe4As4 has a tetragonal unit cell with a P …

The interplay between superconductivity and magnetism is one of the oldest enigmas in
physics. Usually, the strong exchange field of ferromagnet suppresses singlet …

In many pnictides the superconductivity coexists with ferromagnetism in an accessible range
of temperatures and compositions. Recent experiments revealed that when the temperature …

Despite decades of intense research, the origin of high-temperature superconductivity in
cuprates and iron-based compounds is still a mystery. Magnetism and superconductivity are …

The magnetic structure of the Eu 2+ moments in the superconducting EuFe 2 (As 1− x P x) 2
sample with x= 0.15 has been determined using element-specific x-ray resonant magnetic …

Magnetic excitations and magnetic structure of EuRbFe 4 As 4 were investigated by inelastic
neutron scattering (INS), neutron diffraction, and random phase approximation (RPA) …

Superconductivity (SC) and ferromagnetism (FM) are in general antagonistic, which makes
their coexistence very rare. Following our recent discovery of robust coexistence of SC and …