Electronics with superconducting junctions

AUG 01, 1971

As ultracold becomes easier to maintain, highly sensitive devices based on the Josephson effects may find wider and wider use to measure tiny high‐frequency voltages and magnetic fields.

DOI: 10.1063/1.3022881

John Clarke

Josephson tunneling, an effect predicted and discovered within the last decade, has already formed the basis of a new technology. The “Josephson devices” are ultrasensitive electronic measuring devices that operate at liquid‐helium temperatures (1–4K) and exploit the macroscopic‐scale quantum properties of superconducting junctions. They have been used to measure, for example, smaller low‐frequency voltages and magnetic fields than can be measured with any other methods, and are also being investigated as possible high‐frequency detectors and mixers, as thermometers and as computer elements. One of the most important applications of the Josephson effect has been in the precision measurement of $e/h$ in an experiment that avoids any assumptions from quantum electrodynamics (QED); results from this experiment give a convenient and accurate way to express the standard of electromotive force.

References

1. B. D. Josephson in Superconductivity (R. D. Parks, ed.), Marcel Dekker, New York (1969);
P. W. Anderson in Progress in Low Temperature Physics vol. 5 (C. J. Gorter, ed.), North‐Holland, Amsterdam (1967).
2. J. Bardeen, L. N. Cooper, J. R. Schrieffer, Phys. Rev. 108, 1175 (1957).https://doi.org/PHRVAO
3. B. S. DeaverJr, W. M. Fairbank, Phys. Rev. Lett. 7, 43 (1961); https://doi.org/PRLTAO
R. Doll, M. Nabauer, Phys. Rev. Lett. 7, 51 (1961).https://doi.org/PRLTAO
4. B. D. Josephson, Phys. Lett. 1, 251 (1962).https://doi.org/PHLTAM
5. B. D. Josephson, Fellowship thesis, Trinity College, Cambridge, UK (1962);
P. W. Anderson in Lectures on the Many‐Body Problem, Ravello 1963 (E. R. Caianiello, ed.) Academic, New York (1964).
6. P. W. Anderson, J. M. Rowell, Phys. Rev. Lett. 10, 230 (1963).https://doi.org/PRLTAO
7. J. E. Zimmerman, A. H. Silver, Phys. Rev. 141, 367 (1966).https://doi.org/PHRVAO
8. H. A. Notarys, J. E. Mercereau, Proceedings of the International Conference on the Science of Superconductivity, North‐Holland, Amsterdam (1970).
9. J. Clarke, Phil. Mag. 13, 115 (1966).https://doi.org/PHMAA4
10. P. W. Anderson, A. H. Dayem, Phys. Rev. Lett. 13, 195 (1964); https://doi.org/PRLTAO
A. H. Dayem, J. J. Wiegand, Phys. Rev. 155, 419 (1967).https://doi.org/PHRVAO
11. R. C. Jaklevic, J. Lambe, A. H. Silver, J. E. Mercereau, Phys. Rev. Lett. 12, 159 (1964).https://doi.org/PRLTAO
12. R. L. Forgacs, A. Warnick, Rev. Sci. Instr. 38, 214 (1967).https://doi.org/RSINAK
13. J. Clarke, J. L. Paterson, Bull. Am. Phys. Soc. Series II, 16, 399 (1971).
14. J. E. Zimmerman, P. Thiene, J. T. Harding, J. Appl. Phys. 41, 1572 (1970);
J. E. Mercereau, Rev. de Phys. Appl. 5, 13 (1970);
M. Nisenoff, Rev. de Phys. Appl. 5, 21 (1970);
J. M. Goodkind, D. L. Stolfa, Rev. Sci. Instr. 41, 799 (1970).https://doi.org/RSINAK
15. J. E. Zimmerman, to be published in J. Appl. Phys., September 1971.
16. J. P. Gollub, M. R. Beasley, M. Tinkham, Phys. Rev. Lett. 25, 1646 (1970).https://doi.org/PRLTAO
17. physics today, May 1971, page 17.
18. J. E. Zimmerman, J. Appl. Phys. 42, 30 (1971);
J. E. Zimmerman, N. V. Frederick (to be published).
19. J. Clarke, Phys. Rev. Lett. 21, 1566 (1968).https://doi.org/PRLTAO
20. J. Clarke, Am. J. Phys. 38, 1071 (1970).
21. D. N. Langenberg, W. H. Parker, B. N. Taylor, Phys. Rev. 150, 186 (1966).https://doi.org/AJPIAS
22. T. F. Finnegan, A. Denenstein, D. N. Langenberg, (to appear in Phys. Rev. B).
23. W. H. Parker, D. N. Langenberg, A. Denenstein, B. N. Taylor, Phys. Rev. 177, 639 (1969).https://doi.org/PHRVAO
24. E. R. Cohen, J. W. M. DuMond, Rev. Mod. Phys. 37, 537 (1965).https://doi.org/RMPHAT
25. B. N. Taylor, W. H. Parker, D. N. Langenberg, Rev. Mod. Phys. 41, 375 (1969).https://doi.org/RMPHAT
26. P. L. Richards, in Physics of II–V Compounds, vol. G, Academic, New York (to be published).
27. C. C. Grimes, P. L. Richards, S. Shapiro, J. Appl. Phys. 39, 3905 (1968).https://doi.org/JAPIAU
28. B. Ulrich in Proceedings of the 12th International Conference on Low Temperature Physics, Kyoto, Japan (1970).
29. P. L. Richards, S. A. Sterling, Appl. Phys. Lett. 14, 394 (1969).https://doi.org/APPLAB
30. C. C. Grimes, S. Shapiro, Phys. Rev. 169, 397 (1968).https://doi.org/PHRVAO
31. D. G. McDonald, A. S. Risley, J. D. Cupp, K. M. Evenson, Appl. Phys. Lett. 18, 162 (1971).https://doi.org/APPLAB
32. R. A. Kamper in Symposium on the Physics of Superconducting Devices, Charlottesville, Va., Office of Naval Research, 1967, page M1;
R. A. Kamper, J. E. Zimmerman, J. Appl. Phys. 42, 132 (1971); https://doi.org/JAPIAU
R. A. Kamper, J. D. Siegwarth, R. Radebaugh, J. E. Zimmerman (to be published).
33. J. Matisoo, Appl. Phys. Lett. 9, 167 (1966); https://doi.org/APPLAB
J. Matisoo, J. Appl. Phys. 31, 2587 (1968).https://doi.org/JAPIAU
34. P. W. Anderson, R. C. Dynes, T. A. Fulton, Bull. Am. Phys. Soc. Series II, 16, 399 (1971).
35. J. Clarke, Proc. Roy. Soc. (London) A308, 447 (1969).

More about the Authors

John Clarke. University of California, Berkeley, and Lawrence Radiation Laboratory, Berkeley.