COMPARATIVE-STUDY OF THE STATIONARY PROPERTIES OF HIGH-T-C PROXIMITY COUPLED JOSEPHSON-JUNCTIONS

Much recent research aimed at developing high temperature Josephson ju nctions for electronics applications is based on superconductor-normal metal-superconductor (SNS) edge junctions which, in some instances, e xhibit excellent current-voltage characteristics, high critical curren t-resistance products, and low noise. We review tile data available in the published literature and conclude that, despite the useful perfor mance of these junctions, there is little evidence that the behavior o f most reported high-T-c SNS devices can be described by conventional proximity effect theory.