40 citations · 161 across the 6 of their papers we have counts for
6 papers
Evidence for hydrogen two-level systems in atomic layer deposition oxides
M. S. Khalil, M. J. A. Stoutimore, S. Gladchenko +10
Two-level system (TLS) defects in dielectrics are known to limit the performance of electronic devices. We study TLS using millikelvin microwave loss measurements of three atomic l…
Normal-Superconducting Phase Transition Mimicked by Current Noise
M. C. Sullivan, T. Frederiksen, J. M. Repaci +3
As a superconductor goes from the normal state into the superconducting state, the voltage vs. current characteristics at low currents change from linear to non-linear. We show the…
Mutual Inductance Route to Paramagnetic Meissner Effect in 2D Josephson Junction Arrays
Cinzia De Leo, Giacomo Rotoli, Paola Barbara +2
We simulate two-dimensional Josephson junction arrays, including full mutual- inductance effects, as they are cooled below the transition temperature in a magnetic field. We show n…
Finite-Size Effects and Dynamical Scaling in Two-Dimensional Josephson Junction Arrays
J. Holzer, R. S. Newrock, C. J. Lobb +2
In recent years many groups have used Fisher, Fisher, and Huse (FFH) dynamical scaling to investigate and demonstrate details of the superconducting phase transition. Some attentio…
Paramagnetic Meissner Effect in Multiply-Connected Superconductors
A. P. Nielsen, A. B. Cawthorne, P. Barbara +4
We have measured a paramagnetic Meissner effect in Nb-Al2O3-Nb Josephson junction arrays using a scanning SQUID microscope. The arrays exhibit diamagnetism for some cooling fields…
Reentrant AC magnetic susceptibility in Josephson-junction arrays: An alternative explanation for the paramagnetic Meissner effect
P. Barbara, F. M. Araujo-Moreira, A. B. Cawthorne +1
The paramagnetic Meissner effect (PME) measured in high granular superconductors has been attributed to the presence of -junctions between the grains. Here we present me…