113 citations · 645 across the 26 of their papers we have counts for
11 papers · 1 filter
Superconductivity induced by structural reorganization in the electron-doped cuprate NdCeCuO
Anita Guarino, Carmine Autieri, Pasquale Marra +4
Electron-doped and hole-doped superconducting cuprates exhibit a symmetric phase diagram as a function of doping. This symmetry is however only approximate. Indeed, electron-doped…
Dimensionality of the superconductivity in the transition metal pnictide WP
Angela Nigro, Giuseppe Cuono, Pasquale Marra +9
We report theoretical and experimental results on the transition metal pnictide WP. The theoretical outcomes based on tight-binding calculations and density functional theory indic…
Topologically nontrivial Andreev bound states
Pasquale Marra, Muneto Nitta
Andreev bound states are low energy excitations appearing below the particle-hole gap of superconductors, and are expected to be topologically trivial. Here, we report the theoreti…
Quenching current by flux-flow instability in iron-chalcogenides thin films
Antonio Leo, Gaia Grimaldi, Anita Guarino +8
The stability against quench is one of the main issue to be pursued in a superconducting material which should be able to perform at very high levels of current densities. Here we…
Controlling Majorana states in topologically inhomogeneous superconductors
Pasquale Marra, Mario Cuoco
Majorana bound states have been recently observed at the boundaries of one-dimensional topological superconductors. Yet, controlling the localization of the Majorana states, which…
Theoretical approach to direct resonant inelastic x-ray scattering on magnets and superconductors
Pasquale Marra
The capability to probe the dispersion of elementary spin, charge, orbital, and lattice excitations has positioned resonant inelastic x-ray scattering (RIXS) at the forefront of ph…
Stability mechanisms of high current transport in iron-chalcogenides superconducting films
Antonio Leo, Gaia Grimaldi, Pasquale Marra +8
The improvement in the fabrication techniques of iron-based superconductors have made these materials real competitors of high temperature superconductors and MgB. In particula…
Competition between intrinsic and extrinsic effects in the quenching of the superconducting state in FeSeTe thin films
Antonio Leo, Pasquale Marra, Gaia Grimaldi +6
We report the first experimental observation of the quenching of the superconducting state in current-voltage characteristics of an iron-based superconductor, namely, in FeSeTe thi…
Theoretical approach to resonant inelastic x-ray scattering in iron-based superconductors at the energy scale of the superconducting gap
Pasquale Marra, Jeroen van den Brink, Steffen Sykora
We develop a phenomenological theory to predict the characteristic features of the momentum-dependent scattering amplitude in resonant inelastic x-ray scattering (RIXS) at the ener…
Resonant Inelastic X-Ray Scattering as a Probe of the Phase and Excitations of the Order Parameter of Superconductors
Pasquale Marra, Steffen Sykora, Krzysztof Wohlfeld +1
The capability to probe the dispersion of elementary spin, charge, orbital, and lattice excitations has positioned resonant inelastic x-ray scattering (RIXS) at the forefront of ph…
Paraconductivity of K-doped SrFe2As2 superconductor
P. Marra, A. Nigro, Z. Li +4
Paraconductivity of the optimally K-doped SrFe2As2 superconductor is investigated within existing fluctuation mechanisms. The in-plane excess conductivity has been measured in high…