Controlling hysteresis in superconducting constrictions with a resistive shunt

Abstract

We demonstrate control of the thermal hysteresis in superconducting constrictions by adding a resistive shunt. In order to prevent thermal relaxation oscillations, the shunt resistor is placed in close vicinity of the constriction, making the inductive current-switching time smaller than the thermal equilibration time. We investigate the current-voltage characteristics of the same constriction with and without the shunt-resistor. The widening of the hysteresis-free temperature range is explained on the basis of a simple model.

arXiv comment6 pages, 7 figures, including Supplementary Information

References in corpus (4)

• Scanning nano-SQUID with single electron spin sensitivity
• Hysteresis in superconducting short weak links and $\mu$-SQUIDs
• Dynamics of superconducting nanowires shunted with an external resistor
• Reversibility of Superconducting Nb Weak Links Driven by the Proximity Effect in a Quantum Interference Device

Cited by in corpus (5)

• A high performance Nb nano-SQUID with a three-dimensional structure
• Existence of Shapiro Steps in the Dissipative Regime in Superconducting Weak Links
• Bridging the gap between nanowires and Josephson junctions: a superconducting device based on controlled fluxon transfer across nanowires
• Josephson Coupling in the Dissipative State of a Thermally Hysteretic $\mu$-SQUID
• Stability of thermally bistable states and their switching in superconducting weak link