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A Comparison of 2e/h Determinations at NSL Using Point-contact and Thin-film Josephson Junctions

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Atomic Masses and Fundamental Constants 4

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Abstract

Determinations of 2e/h by means of the a.c. Josephson frequency-voltage relationship have been reported by several groups of workers (1–7). Some of these determinations were carried out using thin-film Josephson junctions (1, 2, 6, 7) while others used point-contact junctions (4, 5, 7). Although no theoretical argument has been advanced to suggest that values of 2e/h obtained using different types of junction might differ, it is of interest to determine by experimental means whether any discrepancy exists at the present level of experimental precision. No such comparison has been reported since Parker et al. (7) indicated that there was no significant discrepancy at a precision of 0.9 p.p.m.

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References

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Author information

Authors and Affiliations

  1. CSIRO National Standards Laboratory, Sydney, Australia

    I. K. Harvey, J. C. Macfarlane & R. B. Frenkel

Authors
  1. I. K. Harvey
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  2. J. C. Macfarlane
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  3. R. B. Frenkel
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Editor information

Editors and Affiliations

  1. Department of Physics Clarendon Laboratory, University of Oxford, Oxford, UK

    J. H. Sanders

  2. Instituut voor Kernphysisch Onderzoek, Ooster Ringdijk 18, 1006, Amsterdam, The Netherlands

    A. H. Wapstra

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© 1972 Plenum Publishing Company Ltd

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Harvey, I.K., Macfarlane, J.C., Frenkel, R.B. (1972). A Comparison of 2e/h Determinations at NSL Using Point-contact and Thin-film Josephson Junctions. In: Sanders, J.H., Wapstra, A.H. (eds) Atomic Masses and Fundamental Constants 4. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-7876-1_42

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  • DOI: https://doi.org/10.1007/978-1-4684-7876-1_42

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4684-7878-5

  • Online ISBN: 978-1-4684-7876-1

  • eBook Packages: Springer Book Archive

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