Temperature dependence measurements of the supercurrent-phase relationship in niobium nanobridges

A.G.P. Troeman, S.H.W. van der Ploeg, E. IlÍchev, H.G. Meyer, Alexandre Avraamovitch Golubov, M. Yu Kupriyanov, Johannes W.M. Hilgenkamp

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Abstract

The current-phase relationship has been measured as a function of temperature for niobium nanobridges with different widths. A deformation from Josephson-like sinusoidal characteristics at high temperatures to sawtooth shaped curves at intermediate and multivalued relationships at low temperatures was observed. Based on this, possible hysteresis in the current-voltage characteristics of niobium nanobridge superconducting quantum interference devices can be attributed to phase slippage.
Original languageUndefined
Pages (from-to)024509-
JournalPhysical review B: Condensed matter and materials physics
Volume77
Issue number2
DOIs
Publication statusPublished - 2008

Keywords

  • IR-59973
  • METIS-252556

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