Origin of Hysteresis in a Proximity Josephson Junction

Abstract

We investigate hysteresis in the transport properties of Superconductor - Normal metal - Superconductor (S-N-S) junctions at low temperatures by measuring directly the electron temperature in the normal metal. Our results demonstrate unambiguously that the hysteresis results from an increase of the normal metal electron temperature once the junction switches to the resistive state. In our geometry, the electron temperature increase is governed by the thermal resistance of the superconducting electrodes of the junction.

References in corpus (6)

• Bipolar supercurrent in graphene
• Tunable Supercurrent Through Semiconductor Nanowires
• Proximity DC squids in the long junction limit
• Nonequilibrium transport in mesoscopic multi-terminal SNS Josephson junctions
• Divergence at low bias and down-mixing of the current noise in a diffusive superconductor-normal metal-superconductor junction
• Inelastic relaxation and noise temperature in S/N/S junctions

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