263 citations · 2.3k across the 65 of their papers we have counts for
6 papers · 2 filters
Point contact spectroscopy in Fe-based superconductors: recent advancements and future challenges
R. S. Gonnelli, D. Daghero, M. Tortello
Iron-based superconductors (FeSC) present an unprecedented variety of features both in the superconducting and in the normal state. Different families differ in the value of the cr…
Doping and critical-temperature dependence of the energy gaps in Ba(Fe_{1-x}Co_x)_2As_2 thin films
P. Pecchio, D. Daghero, G. A. Ummarino +4
The dependence of the superconducting gaps in epitaxial Ba(Fe_{1-x}Co_{x})_2As_2 thin films on the nominal doping x (0.04 \leq x \leq 0.15) was studied by means of point-contact An…
The order-parameter symmetry and Fermi surface topology of 122 Fe-based superconductors: a point-contact Andreev-reflection study
R. S. Gonnelli, M. Tortello, D. Daghero +8
We report on the results of directional point-contact Andreev-reflection (PCAR) measurements in Ba(Fe_{1-x}Co_x)2As2 single crystals and epitaxial c-axis oriented films with x = 0.…
Effects of isoelectronic Ru substitution at the Fe site on the energy gaps of optimally F-doped SmFeAsO
D. Daghero, M. Tortello, G. A. Ummarino +5
We studied the effects of isoelectronic Ru substitution at the Fe site on the energy gaps of optimally F-doped SmFeAsO by means of point-contact Andreev reflection spectroscopy. Th…
Point-contact spectroscopy in Co-doped CaFe2As2: nodal superconductivity and topological Fermi surface transition
R. S. Gonnelli, M. Tortello, D. Daghero +4
We performed point-contact Andreev reflection spectroscopy measurements in Ca(Fe_{1-x}Co_x)2As2 single crystals with effective x=0.060 +- 0.005. The spectra of ab-plane contacts sh…
Normal and superconducting properties of LiFeAs explained in the framework of four-band Eliashberg Theory
G. A. Ummarino, Sara Galasso, D. Daghero +3
In this paper we propose a model to reproduce superconductive and normal properties of the iron pnictide LiFeAs in the framework of the four-band spm wave Eliashberg theory. A conf…