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Article
Open AccessBroadband Parametric Amplification in DARTWARS
Superconducting parametric amplifiers offer the capability to amplify feeble signals with extremely low levels of added noise, potentially reaching quantum-limited amplification. This characteristic makes them...
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Article
Open AccessDetector Array Readout with Traveling Wave Amplifiers
Reducing noise to the quantum limit over a large bandwidth is a fundamental requirement for future applications operating at millikelvin temperatures, such as the neutrino mass measurement, the next-generation...
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Article
Open AccessEffect of the substrate on the electrical transport and fluctuation processes in NbRe and NbReN ultrathin films for superconducting electronics applications
NbRe-based superconducting thin films recently received relevant interest in the field of low-temperature electronics. However, for these materials the electrical conduction mechanisms, in particular in the no...
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Article
Open AccessCurrent driven transition from Abrikosov-Josephson to Josephson-like vortex in mesoscopic lateral S/S’/S superconducting weak links
Vortices are topological defects accounting for many important effects in superconductivity, superfluidity, and magnetism. Here we address the stability of a small number of such excitations driven by strong e...
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Article
Open AccessNonequilibrium fluctuations as a distinctive feature of weak localization
Two-dimensional materials, such as graphene, topological insulators, and two-dimensional electron gases, represent a technological playground to develop coherent electronics. In these systems, quantum interfer...
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Article
Pseudo spin-valves with Al or Nb as spacer layer: GMR and search for spin switch behaviour
The magnetoresistance of several Ferromagnet/Normal metal/Ferromagnet spin-valve type structures has been investigated using Al as normal spacer layer. A magnetoresistance ratio up to 4.1% at room temperatu...
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Article
Low frequency transport measurements in
Low frequency transport measurements are performed on GdSr2RuCu2O8 pellets. The observed current-voltage curves are qualitatively explained in the framework of a simple phenomenological model accounting for coexi...
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Chapter and Conference Paper
Coupled Structures of Long Josephson Junctions
Long Josephson junctions are very attractive non-linear systems where solitonic dynamics [14] is fully developed and directly related to experimentally observable quantities. In this system the soliton occurs as ...
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Article
Experimental evidence for phase-locked states in stacked long Josephson junctions
We fabricated and tested samples consisting of two long stacked Josephson junctions with direct access to the intermediate electrode, whose thickness is smaller than London penetration depth λ L
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Article
External magnetic field and self-field effects in stacked long Josephson junctions
We have fabricated and tested samples consisting of two long stacked Josephson junctions with direct access to the intermediate electrode, whose thickness is smaller than London penetration depth λ ...
