Hysteretic I−V curves of superconducting nanowires
M. Tinkham, J. U. Free, C. N. Lau, N. Markovic
DOI 10.1103/PhysRevB.68.134515 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Experimental I−V curves of superconducting MoGe nanowires show hysteresis for the thicker wires and none for the thinner wires. A rather quantitative account of these data for representative wires is obtained by numerically solving the one-dimensional heat flow equation to find a self-consistent distribution of temperature and local resistivity along the wire, using the measured linear resistance R(T) as input. This suggests that the retrapping current in the hysteretic I−V curves is primarily determined by heating effects, and not by the dynamics of phase motion in a tilted washboard potential as often assumed. Heating effects and thermal fluctuations from the low-resistance state to a high-resistance, quasinormal regime appear to set independent upper bounds for the switching current.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| MoGe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Inherent Stochasticity of Superconductor-Resistor Switching Behavior in Nanowires
similarity 0.93Nayana Shah et al.
Source status unknown — claims are unverified
Effect of morphology on the superconductor-insulator transition in one-dimensional nanowires
similarity 0.91A. T. Bollinger et al.
Source status unknown — claims are unverified
Superconductor-Insulator Transition in Long MoGe Nanowires
similarity 0.90Hyunjeong Kim et al.
Source status unknown — claims are unverified
Influence of High Magnetic Fields on the Superconducting Transition of One-Dimensional Nb and MoGe Nanowires
similarity 0.90A. Rogachev et al.
Source status unknown — claims are unverified
Anomalous parallel-field negative magnetoresistance in ultrathin films near the superconductor-insulator transition
similarity 0.90Kevin A. Parendo et al.
Source status unknown — claims are unverified
Temperature dependence of the critical Josephson current in superconductor–insulator–normal-metal proximity junctions near Tc
similarity 0.89Siyuan Han & E. L. Wolf
Source status unknown — claims are unverified