We have examined the superfluidity of 3He in 98.2% porous silica aerogel with up to 34% 4He at 21.6 bars. The mixture is phase separated for 4He fractions between ,11% and 34%, and the 4Herich phase preferentially occupies the regions of highest silica density in the aerogel, thus modifying the distribution of the correlated disorder seen by superfluid 3He. The 3He Tc increases slightly with 4H...

Abstract We present a theoretical framework for understanding the behavior of normal and superconducting states overdoped cuprate high temperature superconductors in vicinity doping-tuned quantum superconductor-to-metal transition. The key ingredients on which we focus are d -wave pairing, flat antinodal dispersion, disorder. Even homogeneous disorder, these lead to effectively granular correla...

Boron-doped diamond granular thin films are known to exhibit superconductivity with an optimal critical temperature of Tc=7.2 K. Here, we report the measured in-plane complex surface impedance boron-doped in microwave frequency range using a resonant technique. Experimentally inductance values good agreement estimates obtained from normal state sheet resistance material. The magnetic penetratio...

Abstract Many experiments investigating magnetic-field tuned superconductor-insulator transition (H-SIT) often exhibit low-temperature resistance saturation, which is interpreted as an anomalous metallic phase emerging from a ‘failed superconductor’, thus challenging conventional theory. Here we study random granular array of indium islands grown on gateable layer indium-oxide. By tuning the in...

2014 The analysis of possible phenomena in the superconductor-constriction-superconductor (S-c-S) junctions inserted into microwave circuits is carried out. The results of experiments in which properties of the junctions making them different in comparison with usual nonlinear microwave elements were studied are discussed. The characteristics of receiving devices such as amplifiers, detectors a...