Dependence of critical current density on oxygen exposure in Nb-AlO/sub x/-Nb tunnel junctions

  title={Dependence of critical current density on oxygen exposure in Nb-AlO/sub x/-Nb tunnel junctions},
  author={A. W. Kleinsasser and R Miller and W. H. Mallison},
  journal={IEEE Transactions on Applied Superconductivity},
We demonstrate that a large fraction of the available data relating the critical current density J/sub c/ of superconducting Nb-AlO/sub x/-Nb tunnel junctions to oxidation parameters can be accounted for by a single, nearly universal dependence. For fixed oxidation temperature, J/sub c/ does not depend independently on oxygen partial pressure and oxidation time, but only on their product. There are two distinct regimes in this dependence, corresponding to high and low J/sub c/.<<ETX>> 

From This Paper

Figures, tables, and topics from this paper.


Publications citing this paper.
Showing 1-10 of 11 extracted citations


Publications referenced by this paper.
Showing 1-10 of 11 references


  • Sept.
  • H. Mallison, R. E. Miller, and A. W. Kleinsasser…
  • 1993


  • Mar.
  • Akaike. A. Fujimaki Y. Takai, and H. Hayakaw…
  • 1991

I annealing Propaties of NblAL410r/Nb lunoel jl"s," 1

  • Trmu Magn.. v d
  • 1991

YunaoOr;i, selfaligned amtact process f a NblAI-AIOJNh Josephson j " u

  • T. S. MorOhasbi S. Hasuo
  • Tmnr M a g n . v d 27,
  • 1991

Wack r e d a r t ~ " I E E E T m n r M a g n , M L 2 7 , p p

  • I. ishida, S. Thham U Hidaka, Y S.NagasnmS.Tsuchidaand
  • Appl phlrr,
  • 1990

Tunneling and surface properties of oxidized metal overlayers on Nb , ” in

  • R. P. Reed
  • Advances in Cryogenic Engineering
  • 1984

Preparation and properties of Nb Josephson junctions with thin AI layers

  • R. E. Miller A. W. Kleinsasser, W. H. Mallison, M. A. Washington Gurvitch, H. A. Huggins, J. M. Rowell
  • IEEE Trans . Magn .
  • 1983

Critical current uniformity and stability of Nb / AI oxide & & Josephson junctions

  • M. Gurvitch
  • J . Appl . fhys .

Effect of growth conditions on the electrical properties of Nb / Al oxide / Nb tunnel junctions

  • R. E. Miller Mallison, A. W. Kleinsasser
  • IEEE Trans . Appl . Supercond . , to be published…

Niobium trilayer Josephson tunnel junctions with ultra - high critical current densities

  • A. W. Kleinsasser, K. A. Delin

Similar Papers

Loading similar papers…