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

Troeman, A.G.P. and Ploeg van der, S.H.W. and IlÍchev, E. and Meyer, H.-G. and Golubov, A.A. and Kupriyanov, M. Yu. and Hilgenkamp, H. (2008) Temperature dependence measurements of the supercurrent-phase relationship in niobium nanobridges. Physical Review B: Condensed matter and materials physics, 77 (2). 024509. ISSN 1098-0121

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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.
Item Type:	Article
Copyright:	© 2008 American Physical Society
Faculty:	Science and Technology (TNW)
Research Group:	Low Temperatures - Biomagnetism (LT)
Link to this item:	http://purl.utwente.nl/publications/59973
Official URL:	http://dx.doi.org/10.1103/PhysRevB.77.024509
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