This review covers experimental results and theoretical ideas on the properties of
superconducting weak links, ie, weak electrical contacts between superconducting …

The concept of a fully superconducting integrated receiver is developed and experimentally
tested. This single-chip sub-mm wave receiver includes a planar antenna integrated with a …

A microscopic theory of the transport properties of quantum point contacts giving a unified
description of the normal conductor-superconductor (NS) and superconductor …

We develop a theory of subharmonic gap structure (SGS) in superconducting one-mode
tunnel junction. The subgap current is attributed to inelastic multichannel quasiparticle …

We describe measurements on high-current-density Nb-AlO x-Nb tunnel junctions and
demonstrate that the development of excess subgap current with increasing barrier …

Flux-flow oscillators (FFO's) are being developed for integration with a SIS mixer for use in
submillimeter wave receivers. The present work contains a detailed experimental study of …

Using a mechanically controllable breakjunction we study superconducting tunnel junctions
of atom size. The vacuum barrier is adjusted by controlling the distance between the …

Single-atom junctions between superconducting niobium leads are produced using the
mechanically controllable break junction technique. The current-voltage characteristics of …

We elaborate a theoretical description of large Josephson junctions which is based on
Werthamer's microscopic tunneling theory. The model naturally incorporates coupling of …

FIG. 1. Influence of the critical dc supercurrent density jo on the I-(V) characteristic of tunnel
junctions. The hysteresis is characterized by the ratio of the reverse switching current IR and …