23 citations · 46 across the 3 of their papers we have counts for
6 papers · 1 filter
Two-band parallel conductivity at terahertz frequencies in the superconducting state of MgB.
M. Ortolani, P. Dore, D. Di Castro +7
The optical response of the two-band superconductor MgB has been studied in the 0.7-4 THz range on films with very low impurity level. The effect of the high-energy -gap is…
Probing the electron-phonon coupling in MgB2 through magnetoresistance measurements in neutron irradiated thin films
M. Monni, I. Pallecchi, C. Ferdeghini +9
We report magnetoresistance (MR) measurements on MgB2 and the corresponding full account from ab-initio calculations; we suggest that this combination can be a useful tool to probe…
Effect of the four-sheet Fermi surface on magnetoresistivity of MgB2
I. Pallecchi, M. Monni, C. Ferdeghini +4
Recent experimental data of anisotropic magnetoresistivity measured in MgB2 films have shown an intriguing behaviour: the angular dependence of magnetoresistivity changes dramatica…
High-field superconductivity in alloyed MgB2 thin films
V. Braccini, A. Gurevich, J. E. Giencke +24
We investigated the effect of alloying on the upper critical field in 12 films, in which disorder was introduced by growth, carbon doping or He-ion irradiation, fi…
Point-Contact Spectroscopy in MgB_2: from Fundamental Physics to Thin-Film Characterization
R. S. Gonnelli, D. Daghero, A. Calzolari +9
In this paper we highlight the advantages of using point-contact spectroscopy (PCS) in multigap superconductors like MgB_2, both as a fundamental research tool and as a non-destruc…
Josephson effect and tunneling spectroscopy in Nb/Al2O3/Al/MgB2 thin films junctions
G. Carapella, N. Martucciello, G. Costabile +3
We report the demonstration of dc and ac Josephson effects as well as tunneling spectroscopy measurements on Nb/Al2O3/Al/MgB2 thin films heterostructures. Data on dc Josephson effe…